79353665 has 4 divisors (see below), whose sum is σ = 95224404. Its totient is φ = 63482928.

The previous prime is 79353649. The next prime is 79353679. The reversal of 79353665 is 56635397.

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

It can be written as a sum of positive squares in 2 ways, for example, as 15737089 + 63616576 = 3967^2 + 7976^2 .

It is a cyclic number.

It is not a de Polignac number, because 79353665 - 2⁴ = 79353649 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7935362 + ... + 7935371.

It is an arithmetic number, because the mean of its divisors is an integer number (23806101).

Almost surely, 2^79353665 is an apocalyptic number.

It is an amenable number.

79353665 is a deficient number, since it is larger than the sum of its proper divisors (15870739).

79353665 is a wasteful number, since it uses less digits than its factorization.

79353665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15870738.

The product of its digits is 510300, while the sum is 44.

The square root of 79353665 is about 8908.0674110606. The cubic root of 79353665 is about 429.7233934049.

The spelling of 79353665 in words is "seventy-nine million, three hundred fifty-three thousand, six hundred sixty-five".