6364620 has 72 divisors (see below), whose sum is σ = 20333040. Its totient is φ = 1607040.

The previous prime is 6364591. The next prime is 6364621. The reversal of 6364620 is 264636.

6364620 is a `hidden beast` number, since 6 + 36 + 4 + 620 = 666.

It is not an unprimeable number, because it can be changed into a prime (6364621) 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 23 ways as a sum of consecutive naturals, for example, 2490 + ... + 4350.

Almost surely, 2^6364620 is an apocalyptic number.

6364620 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 6364620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10166520).

6364620 is an abundant number, since it is smaller than the sum of its proper divisors (13968420).

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

6364620 is a wasteful number, since it uses less digits than its factorization.

6364620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1895 (or 1890 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

The square root of 6364620 is about 2522.8198508812. The cubic root of 6364620 is about 185.3207971899.

The spelling of 6364620 in words is "six million, three hundred sixty-four thousand, six hundred twenty".