79211268 has 18 divisors (see below), whose sum is σ = 200228574. Its totient is φ = 26403744.

The previous prime is 79211261. The next prime is 79211269. The reversal of 79211268 is 86211297.

It can be written as a sum of positive squares in only one way, i.e., 79174404 + 36864 = 8898^2 + 192^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 2200313 = 79211268 / (7 + 9 + 2 + 1 + 1 + 2 + 6 + 8).

It is not an unprimeable number, because it can be changed into a prime (79211261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1100121 + ... + 1100192.

Almost surely, 2^79211268 is an apocalyptic number.

It is an amenable number.

79211268 is an abundant number, since it is smaller than the sum of its proper divisors (121017306).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

79211268 is a wasteful number, since it uses less digits than its factorization.

79211268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2200323 (or 2200318 counting only the distinct ones).

The product of its digits is 12096, while the sum is 36.

The square root of 79211268 is about 8900.0712356700. The cubic root of 79211268 is about 429.4661989813.

The spelling of 79211268 in words is "seventy-nine million, two hundred eleven thousand, two hundred sixty-eight".