79861542 has 8 divisors (see below), whose sum is σ = 159723096. Its totient is φ = 26620512.

The previous prime is 79861531. The next prime is 79861559. The reversal of 79861542 is 24516897.

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

79861542 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 79861494 and 79861503.

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, 6655123 + ... + 6655134.

It is an arithmetic number, because the mean of its divisors is an integer number (19965387).

Almost surely, 2^79861542 is an apocalyptic number.

79861542 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

79861542 is a wasteful number, since it uses less digits than its factorization.

79861542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13310262.

The product of its digits is 120960, while the sum is 42.

The square root of 79861542 is about 8936.5285206281. The cubic root of 79861542 is about 430.6382121939.

The spelling of 79861542 in words is "seventy-nine million, eight hundred sixty-one thousand, five hundred forty-two".