79040165 has 4 divisors (see below), whose sum is σ = 94848204. Its totient is φ = 63232128.

The previous prime is 79040147. The next prime is 79040183. The reversal of 79040165 is 56104097.

79040165 = 6286² + 6287².

It is a happy number.

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

It is an interprime number because it is at equal distance from previous prime (79040147) and next prime (79040183).

It can be written as a sum of positive squares in 2 ways, for example, as 39526369 + 39513796 = 6287^2 + 6286^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-79040165 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7904012 + ... + 7904021.

It is an arithmetic number, because the mean of its divisors is an integer number (23712051).

Almost surely, 2^79040165 is an apocalyptic number.

79040165 is the 6287-th centered square number.

It is an amenable number.

79040165 is a deficient number, since it is larger than the sum of its proper divisors (15808039).

79040165 is a wasteful number, since it uses less digits than its factorization.

79040165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15808038.

The product of its (nonzero) digits is 7560, while the sum is 32.

The square root of 79040165 is about 8890.4535879785. The cubic root of 79040165 is about 429.1567483595.

The spelling of 79040165 in words is "seventy-nine million, forty thousand, one hundred sixty-five".