79631975 has 6 divisors (see below), whose sum is σ = 98743680. Its totient is φ = 63705560.

The previous prime is 79631971. The next prime is 79632011. The reversal of 79631975 is 57913697.

It is a happy number.

It is not a de Polignac number, because 79631975 - 2² = 79631971 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79631971) 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, 1592615 + ... + 1592664.

It is an arithmetic number, because the mean of its divisors is an integer number (16457280).

Almost surely, 2^79631975 is an apocalyptic number.

79631975 is a deficient number, since it is larger than the sum of its proper divisors (19111705).

79631975 is a wasteful number, since it uses less digits than its factorization.

79631975 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3185289 (or 3185284 counting only the distinct ones).

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

The square root of 79631975 is about 8923.6749716695. The cubic root of 79631975 is about 430.2251840192.

The spelling of 79631975 in words is "seventy-nine million, six hundred thirty-one thousand, nine hundred seventy-five".