79472666 has 32 divisors (see below), whose sum is σ = 148514688. Its totient is φ = 31055040.

The previous prime is 79472581. The next prime is 79472677. The reversal of 79472666 is 66627497.

It is a super-2 number, since 2×79472666² = 12631809282295112, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 79472666.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12476 + ... + 17736.

It is an arithmetic number, because the mean of its divisors is an integer number (4641084).

Almost surely, 2^79472666 is an apocalyptic number.

79472666 is a deficient number, since it is larger than the sum of its proper divisors (69042022).

79472666 is a wasteful number, since it uses less digits than its factorization.

79472666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5366.

The product of its digits is 762048, while the sum is 47.

The square root of 79472666 is about 8914.7443036803. The cubic root of 79472666 is about 429.9380945675.

The spelling of 79472666 in words is "seventy-nine million, four hundred seventy-two thousand, six hundred sixty-six".