79911142 has 8 divisors (see below), whose sum is σ = 121213800. Its totient is φ = 39506544.

The previous prime is 79911089. The next prime is 79911151. The reversal of 79911142 is 24111997.

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

It is a junction number, because it is equal to n+sod(n) for n = 79911098 and 79911107.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 224292 + ... + 224647.

It is an arithmetic number, because the mean of its divisors is an integer number (15151725).

Almost surely, 2^79911142 is an apocalyptic number.

79911142 is a deficient number, since it is larger than the sum of its proper divisors (41302658).

79911142 is a wasteful number, since it uses less digits than its factorization.

79911142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 449030.

The product of its digits is 4536, while the sum is 34.

The square root of 79911142 is about 8939.3032166942. The cubic root of 79911142 is about 430.7273466063.

The spelling of 79911142 in words is "seventy-nine million, nine hundred eleven thousand, one hundred forty-two".