79268491 has 4 divisors (see below), whose sum is σ = 80038192. Its totient is φ = 78498792.

The previous prime is 79268459. The next prime is 79268533. The reversal of 79268491 is 19486297.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 19486297 = 229 ⋅85093.

It is a cyclic number.

It is not a de Polignac number, because 79268491 - 2⁵ = 79268459 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (79268401) 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, 384696 + ... + 384901.

It is an arithmetic number, because the mean of its divisors is an integer number (20009548).

Almost surely, 2^79268491 is an apocalyptic number.

79268491 is a deficient number, since it is larger than the sum of its proper divisors (769701).

79268491 is a wasteful number, since it uses less digits than its factorization.

79268491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 769700.

The product of its digits is 217728, while the sum is 46.

The square root of 79268491 is about 8903.2854048379. The cubic root of 79268491 is about 429.5695909586.

The spelling of 79268491 in words is "seventy-nine million, two hundred sixty-eight thousand, four hundred ninety-one".