157897936 has 20 divisors (see below), whose sum is σ = 349631392. Its totient is φ = 67670496.

The previous prime is 157897931. The next prime is 157897939. The reversal of 157897936 is 639798751.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157897931) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 704790 + ... + 705013.

Almost surely, 2^157897936 is an apocalyptic number.

157897936 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

157897936 is an abundant number, since it is smaller than the sum of its proper divisors (191733456).

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

157897936 is a wasteful number, since it uses less digits than its factorization.

157897936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1409818 (or 1409812 counting only the distinct ones).

The product of its digits is 2857680, while the sum is 55.

The square root of 157897936 is about 12565.7445461859. The cubic root of 157897936 is about 540.4955852750.

The spelling of 157897936 in words is "one hundred fifty-seven million, eight hundred ninety-seven thousand, nine hundred thirty-six".