79454951 has 4 divisors (see below), whose sum is σ = 79472952. Its totient is φ = 79436952.

The previous prime is 79454917. The next prime is 79454959. The reversal of 79454951 is 15945497.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 15945497 = 3331 ⋅4787.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-79454951 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79454959) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2636 + ... + 12878.

It is an arithmetic number, because the mean of its divisors is an integer number (19868238).

Almost surely, 2^79454951 is an apocalyptic number.

79454951 is a deficient number, since it is larger than the sum of its proper divisors (18001).

79454951 is a wasteful number, since it uses less digits than its factorization.

79454951 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18000.

The product of its digits is 226800, while the sum is 44.

The square root of 79454951 is about 8913.7506696115. The cubic root of 79454951 is about 429.9061468144.

The spelling of 79454951 in words is "seventy-nine million, four hundred fifty-four thousand, nine hundred fifty-one".