79188361 has 12 divisors (see below), whose sum is σ = 92304660. Its totient is φ = 67737600.

The previous prime is 79188349. The next prime is 79188367. The reversal of 79188361 is 16388197.

It can be written as a sum of positive squares in 2 ways, for example, as 30969225 + 48219136 = 5565^2 + 6944^2 .

It is not a de Polignac number, because 79188361 - 2¹⁷ = 79057289 is a prime.

It is not an unprimeable number, because it can be changed into a prime (79188367) 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 11 ways as a sum of consecutive naturals, for example, 28105 + ... + 30793.

It is an arithmetic number, because the mean of its divisors is an integer number (7692055).

Almost surely, 2^79188361 is an apocalyptic number.

It is an amenable number.

79188361 is a deficient number, since it is larger than the sum of its proper divisors (13116299).

79188361 is a wasteful number, since it uses less digits than its factorization.

79188361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3304 (or 3297 counting only the distinct ones).

The product of its digits is 72576, while the sum is 43.

The square root of 79188361 is about 8898.7842428053. The cubic root of 79188361 is about 429.4247960726.

The spelling of 79188361 in words is "seventy-nine million, one hundred eighty-eight thousand, three hundred sixty-one".