79142686 has 8 divisors (see below), whose sum is σ = 135673200. Its totient is φ = 33918288.

The previous prime is 79142677. The next prime is 79142729. The reversal of 79142686 is 68624197.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2826511 + ... + 2826538.

It is an arithmetic number, because the mean of its divisors is an integer number (16959150).

Almost surely, 2^79142686 is an apocalyptic number.

79142686 is a deficient number, since it is larger than the sum of its proper divisors (56530514).

79142686 is a wasteful number, since it uses less digits than its factorization.

79142686 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5653058.

The product of its digits is 145152, while the sum is 43.

The square root of 79142686 is about 8896.2175108301. The cubic root of 79142686 is about 429.3422176500.

The spelling of 79142686 in words is "seventy-nine million, one hundred forty-two thousand, six hundred eighty-six".