6815970 has 96 divisors (see below), whose sum is σ = 20966400. Its totient is φ = 1503360.

The previous prime is 6815969. The next prime is 6815971. The reversal of 6815970 is 795186.

6815970 is a `hidden beast` number, since 68 + 1 + 597 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (6815969) and next prime (6815971).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6815971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 19356 + ... + 19704.

It is an arithmetic number, because the mean of its divisors is an integer number (218400).

Almost surely, 2^6815970 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6815970, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10483200).

6815970 is an abundant number, since it is smaller than the sum of its proper divisors (14150430).

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

6815970 is a wasteful number, since it uses less digits than its factorization.

6815970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 400 (or 397 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 36.

The square root of 6815970 is about 2610.7412740446. The cubic root of 6815970 is about 189.6018439707.

The spelling of 6815970 in words is "six million, eight hundred fifteen thousand, nine hundred seventy".