79787158 has 24 divisors (see below), whose sum is σ = 132014736. Its totient is φ = 36138960.

The previous prime is 79787131. The next prime is 79787159. The reversal of 79787158 is 85178797.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79787159) 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, 117516 + ... + 118192.

It is an arithmetic number, because the mean of its divisors is an integer number (5500614).

Almost surely, 2^79787158 is an apocalyptic number.

79787158 is a deficient number, since it is larger than the sum of its proper divisors (52227578).

79787158 is a wasteful number, since it uses less digits than its factorization.

79787158 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1188 (or 1177 counting only the distinct ones).

The product of its digits is 987840, while the sum is 52.

The square root of 79787158 is about 8932.3657560581. The cubic root of 79787158 is about 430.5044701269.

The spelling of 79787158 in words is "seventy-nine million, seven hundred eighty-seven thousand, one hundred fifty-eight".