6397933685 has 48 divisors (see below), whose sum is σ = 9137802240. Its totient is φ = 4271625600.

The previous prime is 6397933681. The next prime is 6397933709. The reversal of 6397933685 is 5863397936.

It is not a de Polignac number, because 6397933685 - 2² = 6397933681 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6397933681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1500086 + ... + 1504344.

It is an arithmetic number, because the mean of its divisors is an integer number (190370880).

Almost surely, 2^6397933685 is an apocalyptic number.

6397933685 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

6397933685 is a deficient number, since it is larger than the sum of its proper divisors (2739868555).

6397933685 is a wasteful number, since it uses less digits than its factorization.

6397933685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4490 (or 4479 counting only the distinct ones).

The product of its digits is 22044960, while the sum is 59.

The square root of 6397933685 is about 79987.0844886848. The cubic root of 6397933685 is about 1856.4356997575.

The spelling of 6397933685 in words is "six billion, three hundred ninety-seven million, nine hundred thirty-three thousand, six hundred eighty-five".