79945655 has 4 divisors (see below), whose sum is σ = 95934792. Its totient is φ = 63956520.

The previous prime is 79945651. The next prime is 79945661. The reversal of 79945655 is 55654997.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 79945655 - 2² = 79945651 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 (79945651) 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, 7994561 + ... + 7994570.

It is an arithmetic number, because the mean of its divisors is an integer number (23983698).

Almost surely, 2^79945655 is an apocalyptic number.

79945655 is a deficient number, since it is larger than the sum of its proper divisors (15989137).

79945655 is a wasteful number, since it uses less digits than its factorization.

79945655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15989136.

The product of its digits is 1701000, while the sum is 50.

The square root of 79945655 is about 8941.2334160338. The cubic root of 79945655 is about 430.7893469437.

The spelling of 79945655 in words is "seventy-nine million, nine hundred forty-five thousand, six hundred fifty-five".