157927979 has 8 divisors (see below), whose sum is σ = 172376640. Its totient is φ = 143494600.

The previous prime is 157927933. The next prime is 157927993. The reversal of 157927979 is 979729751.

157927979 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 157927979 - 2⁸ = 157927723 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (157927079) 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, 34952 + ... + 39210.

It is an arithmetic number, because the mean of its divisors is an integer number (21547080).

Almost surely, 2^157927979 is an apocalyptic number.

157927979 is a deficient number, since it is larger than the sum of its proper divisors (14448661).

157927979 is a wasteful number, since it uses less digits than its factorization.

157927979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7641.

The product of its digits is 2500470, while the sum is 56.

The square root of 157927979 is about 12566.9399218744. The cubic root of 157927979 is about 540.5298628586.

The spelling of 157927979 in words is "one hundred fifty-seven million, nine hundred twenty-seven thousand, nine hundred seventy-nine".