79455861 has 12 divisors (see below), whose sum is σ = 114847200. Its totient is φ = 52934760.

The previous prime is 79455839. The next prime is 79455917. The reversal of 79455861 is 16855497.

79455861 is a `hidden beast` number, since 7 + 94 + 558 + 6 + 1 = 666.

It is not a de Polignac number, because 79455861 - 2⁹ = 79455349 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79455811) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22656 + ... + 25926.

It is an arithmetic number, because the mean of its divisors is an integer number (9570600).

Almost surely, 2^79455861 is an apocalyptic number.

It is an amenable number.

79455861 is a deficient number, since it is larger than the sum of its proper divisors (35391339).

79455861 is a wasteful number, since it uses less digits than its factorization.

79455861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5976 (or 5973 counting only the distinct ones).

The product of its digits is 302400, while the sum is 45.

The square root of 79455861 is about 8913.8017141958. The cubic root of 79455861 is about 429.9077880509.

The spelling of 79455861 in words is "seventy-nine million, four hundred fifty-five thousand, eight hundred sixty-one".