79136975 has 6 divisors (see below), whose sum is σ = 98129880. Its totient is φ = 63309560.

The previous prime is 79136971. The next prime is 79136977. The reversal of 79136975 is 57963197.

It is a happy number.

It is not a de Polignac number, because 79136975 - 2² = 79136971 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79136971) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1582715 + ... + 1582764.

It is an arithmetic number, because the mean of its divisors is an integer number (16354980).

Almost surely, 2^79136975 is an apocalyptic number.

79136975 is a deficient number, since it is larger than the sum of its proper divisors (18992905).

79136975 is a wasteful number, since it uses less digits than its factorization.

79136975 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3165489 (or 3165484 counting only the distinct ones).

The product of its digits is 357210, while the sum is 47.

The square root of 79136975 is about 8895.8965259270. The cubic root of 79136975 is about 429.3318901748.

Subtracting from 79136975 its reverse (57963197), we obtain a triangular number (21173778 = T₆₅₀₇).

The spelling of 79136975 in words is "seventy-nine million, one hundred thirty-six thousand, nine hundred seventy-five".