6397986930 has 32 divisors (see below), whose sum is σ = 15359112000. Its totient is φ = 1705691712.

The previous prime is 6397986923. The next prime is 6397986949. The reversal of 6397986930 is 396897936.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 101296 + ... + 151844.

It is an arithmetic number, because the mean of its divisors is an integer number (479972250).

Almost surely, 2^6397986930 is an apocalyptic number.

6397986930 is an abundant number, since it is smaller than the sum of its proper divisors (8961125070).

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

6397986930 is a wasteful number, since it uses less digits than its factorization.

6397986930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54778.

The product of its (nonzero) digits is 13226976, while the sum is 60.

The square root of 6397986930 is about 79987.4173229765. The cubic root of 6397986930 is about 1856.4408496309.

The spelling of 6397986930 in words is "six billion, three hundred ninety-seven million, nine hundred eighty-six thousand, nine hundred thirty".