79827605 has 32 divisors (see below), whose sum is σ = 113799168. Its totient is φ = 52992000.

The previous prime is 79827581. The next prime is 79827613. The reversal of 79827605 is 50672897.

It is not a de Polignac number, because 79827605 - 2¹² = 79823509 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 68780 + ... + 69930.

It is an arithmetic number, because the mean of its divisors is an integer number (3556224).

Almost surely, 2^79827605 is an apocalyptic number.

It is an amenable number.

79827605 is a deficient number, since it is larger than the sum of its proper divisors (33971563).

79827605 is a wasteful number, since it uses less digits than its factorization.

79827605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1277.

The product of its (nonzero) digits is 211680, while the sum is 44.

The square root of 79827605 is about 8934.6295390464. The cubic root of 79827605 is about 430.5772039402.

The spelling of 79827605 in words is "seventy-nine million, eight hundred twenty-seven thousand, six hundred five".