157727808 has 84 divisors (see below), whose sum is σ = 516696960. Its totient is φ = 45063936.

The previous prime is 157727803. The next prime is 157727821. The reversal of 157727808 is 808727751.

157727808 is a `hidden beast` number, since 1 + 577 + 2 + 78 + 0 + 8 = 666.

It is a tau number, because it is divible by the number of its divisors (84).

It is a super-2 number, since 2×157727808² = 49756122832969728, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (157727803) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15528 + ... + 23591.

Almost surely, 2^157727808 is an apocalyptic number.

157727808 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

157727808 is an abundant number, since it is smaller than the sum of its proper divisors (358969152).

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

157727808 is a wasteful number, since it uses less digits than its factorization.

157727808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39144 (or 39131 counting only the distinct ones).

The product of its (nonzero) digits is 219520, while the sum is 45.

The square root of 157727808 is about 12558.9732064369. The cubic root of 157727808 is about 540.3013955338.

The spelling of 157727808 in words is "one hundred fifty-seven million, seven hundred twenty-seven thousand, eight hundred eight".