157987794 has 8 divisors (see below), whose sum is σ = 315975600. Its totient is φ = 52662596.

The previous prime is 157987789. The next prime is 157987813. The reversal of 157987794 is 497789751.

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

157987794 is an admirable 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, 13165644 + ... + 13165655.

It is an arithmetic number, because the mean of its divisors is an integer number (39496950).

Almost surely, 2^157987794 is an apocalyptic number.

157987794 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.

157987794 is a wasteful number, since it uses less digits than its factorization.

157987794 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26331304.

The product of its digits is 4445280, while the sum is 57.

The square root of 157987794 is about 12569.3195519885. The cubic root of 157987794 is about 540.5980958868.

The spelling of 157987794 in words is "one hundred fifty-seven million, nine hundred eighty-seven thousand, seven hundred ninety-four".