6397380 has 120 divisors (see below), whose sum is σ = 21954240. Its totient is φ = 1546560.

The previous prime is 6397373. The next prime is 6397387. The reversal of 6397380 is 837936.

It is an interprime number because it is at equal distance from previous prime (6397373) and next prime (6397387).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (6397387) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 17641 + ... + 17999.

It is an arithmetic number, because the mean of its divisors is an integer number (182952).

Almost surely, 2^6397380 is an apocalyptic number.

6397380 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6397380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10977120).

6397380 is an abundant number, since it is smaller than the sum of its proper divisors (15556860).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6397380 is a wasteful number, since it uses less digits than its factorization.

6397380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 391 (or 380 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 36.

The square root of 6397380 is about 2529.3042521611. The cubic root of 6397380 is about 185.6382145475.

It can be divided in two parts, 6 and 397380, that added together give a triangular number (397386 = T₈₉₁).

The spelling of 6397380 in words is "six million, three hundred ninety-seven thousand, three hundred eighty".