79920841 has 16 divisors (see below), whose sum is σ = 107307648. Its totient is φ = 57484800.

The previous prime is 79920833. The next prime is 79920857. The reversal of 79920841 is 14802997.

It is a cyclic number.

It is not a de Polignac number, because 79920841 - 2³ = 79920833 is a prime.

It is a super-2 number, since 2×79920841² = 12774681652294562, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 79920794 and 79920803.

It is not an unprimeable number, because it can be changed into a prime (79920811) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38920 + ... + 40921.

It is an arithmetic number, because the mean of its divisors is an integer number (6706728).

Almost surely, 2^79920841 is an apocalyptic number.

It is an amenable number.

79920841 is a deficient number, since it is larger than the sum of its proper divisors (27386807).

79920841 is a wasteful number, since it uses less digits than its factorization.

79920841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79872.

The product of its (nonzero) digits is 36288, while the sum is 40.

The square root of 79920841 is about 8939.8456921806. The cubic root of 79920841 is about 430.7447720259.

The spelling of 79920841 in words is "seventy-nine million, nine hundred twenty thousand, eight hundred forty-one".