797640936 has 64 divisors (see below), whose sum is σ = 2021073600. Its totient is φ = 262310400.

The previous prime is 797640929. The next prime is 797640973. The reversal of 797640936 is 639046797.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 603156 + ... + 604476.

It is an arithmetic number, because the mean of its divisors is an integer number (31579275).

Almost surely, 2^797640936 is an apocalyptic number.

It is an amenable number.

797640936 is an abundant number, since it is smaller than the sum of its proper divisors (1223432664).

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

797640936 is a wasteful number, since it uses less digits than its factorization.

797640936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1650 (or 1646 counting only the distinct ones).

The product of its (nonzero) digits is 1714608, while the sum is 51.

The square root of 797640936 is about 28242.5377046752. The cubic root of 797640936 is about 927.4043845704.

The spelling of 797640936 in words is "seven hundred ninety-seven million, six hundred forty thousand, nine hundred thirty-six".