157396686 has 8 divisors (see below), whose sum is σ = 314793384. Its totient is φ = 52465560.

The previous prime is 157396661. The next prime is 157396691. The reversal of 157396686 is 686693751.

It is a sphenic number, since it is the product of 3 distinct primes.

157396686 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13116385 + ... + 13116396.

It is an arithmetic number, because the mean of its divisors is an integer number (39349173).

Almost surely, 2^157396686 is an apocalyptic number.

157396686 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

157396686 is a wasteful number, since it uses less digits than its factorization.

157396686 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26232786.

The product of its digits is 1632960, while the sum is 51.

The square root of 157396686 is about 12545.7835944990. The cubic root of 157396686 is about 539.9230411588.

The spelling of 157396686 in words is "one hundred fifty-seven million, three hundred ninety-six thousand, six hundred eighty-six".