79470645 has 32 divisors (see below), whose sum is σ = 129585792. Its totient is φ = 41582592.

The previous prime is 79470641. The next prime is 79470649. The reversal of 79470645 is 54607497.

It is an interprime number because it is at equal distance from previous prime (79470641) and next prime (79470649).

It is not a de Polignac number, because 79470645 - 2² = 79470641 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 79470597 and 79470606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79470641) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 280674 + ... + 280956.

It is an arithmetic number, because the mean of its divisors is an integer number (4049556).

Almost surely, 2^79470645 is an apocalyptic number.

It is an amenable number.

79470645 is a deficient number, since it is larger than the sum of its proper divisors (50115147).

79470645 is a wasteful number, since it uses less digits than its factorization.

79470645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 581.

The product of its (nonzero) digits is 211680, while the sum is 42.

The square root of 79470645 is about 8914.6309514191. The cubic root of 79470645 is about 429.9344500765.

The spelling of 79470645 in words is "seventy-nine million, four hundred seventy thousand, six hundred forty-five".