79042861 has 8 divisors (see below), whose sum is σ = 81273600. Its totient is φ = 76835088.

The previous prime is 79042853. The next prime is 79042871. The reversal of 79042861 is 16824097.

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

It is a cyclic number.

It is not a de Polignac number, because 79042861 - 2³ = 79042853 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 79042861.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79042801) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 1360 + ... + 12646.

It is an arithmetic number, because the mean of its divisors is an integer number (10159200).

Almost surely, 2^79042861 is an apocalyptic number.

It is an amenable number.

79042861 is a deficient number, since it is larger than the sum of its proper divisors (2230739).

79042861 is a wasteful number, since it uses less digits than its factorization.

79042861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11483.

The product of its (nonzero) digits is 24192, while the sum is 37.

The square root of 79042861 is about 8890.6052099955. The cubic root of 79042861 is about 429.1616277076.

The spelling of 79042861 in words is "seventy-nine million, forty-two thousand, eight hundred sixty-one".