79390555 has 16 divisors (see below), whose sum is σ = 99447264. Its totient is φ = 60785920.

The previous prime is 79390543. The next prime is 79390559. The reversal of 79390555 is 55509397.

It is not a de Polignac number, because 79390555 - 2¹³ = 79382363 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (79390559) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7212 + ... + 14518.

It is an arithmetic number, because the mean of its divisors is an integer number (6215454).

Almost surely, 2^79390555 is an apocalyptic number.

79390555 is a deficient number, since it is larger than the sum of its proper divisors (20056709).

79390555 is a wasteful number, since it uses less digits than its factorization.

79390555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7406.

The product of its (nonzero) digits is 212625, while the sum is 43.

The square root of 79390555 is about 8910.1377654894. The cubic root of 79390555 is about 429.7899731489.

The spelling of 79390555 in words is "seventy-nine million, three hundred ninety thousand, five hundred fifty-five".