79636142 has 8 divisors (see below), whose sum is σ = 121995936. Its totient is φ = 38970832.

The previous prime is 79636111. The next prime is 79636159. The reversal of 79636142 is 24163697.

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

It is a super-2 number, since 2×79636142² = 12683830225288328, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 79636096 and 79636105.

It is a congruent 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, 423503 + ... + 423690.

It is an arithmetic number, because the mean of its divisors is an integer number (15249492).

Almost surely, 2^79636142 is an apocalyptic number.

79636142 is a deficient number, since it is larger than the sum of its proper divisors (42359794).

79636142 is a wasteful number, since it uses less digits than its factorization.

79636142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 847242.

The product of its digits is 54432, while the sum is 38.

The square root of 79636142 is about 8923.9084486563. The cubic root of 79636142 is about 430.2326881952.

The spelling of 79636142 in words is "seventy-nine million, six hundred thirty-six thousand, one hundred forty-two".