79914091 has 4 divisors (see below), whose sum is σ = 79935184. Its totient is φ = 79893000.

The previous prime is 79914083. The next prime is 79914097. The reversal of 79914091 is 19041997.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 19041997 = 13 ⋅1464769.

It is a cyclic number.

It is not a de Polignac number, because 79914091 - 2³ = 79914083 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (79914097) 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 3 ways as a sum of consecutive naturals, for example, 3120 + ... + 13021.

It is an arithmetic number, because the mean of its divisors is an integer number (19983796).

Almost surely, 2^79914091 is an apocalyptic number.

79914091 is a deficient number, since it is larger than the sum of its proper divisors (21093).

79914091 is a wasteful number, since it uses less digits than its factorization.

79914091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21092.

The product of its (nonzero) digits is 20412, while the sum is 40.

The square root of 79914091 is about 8939.4681609143. The cubic root of 79914091 is about 430.7326449885.

The spelling of 79914091 in words is "seventy-nine million, nine hundred fourteen thousand, ninety-one".