797857536 has 72 divisors (see below), whose sum is σ = 2426833024. Its totient is φ = 227957760.

The previous prime is 797857523. The next prime is 797857537. The reversal of 797857536 is 635758797.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (797857537) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68830 + ... + 79581.

Almost surely, 2^797857536 is an apocalyptic number.

It is an amenable number.

797857536 is an abundant number, since it is smaller than the sum of its proper divisors (1628975488).

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

797857536 is a wasteful number, since it uses less digits than its factorization.

797857536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148437 (or 148423 counting only the distinct ones).

The product of its digits is 11113200, while the sum is 57.

The square root of 797857536 is about 28246.3720856325. The cubic root of 797857536 is about 927.4883227606.

The spelling of 797857536 in words is "seven hundred ninety-seven million, eight hundred fifty-seven thousand, five hundred thirty-six".