79031481 has 4 divisors (see below), whose sum is σ = 105375312. Its totient is φ = 52687652.

The previous prime is 79031413. The next prime is 79031489. The reversal of 79031481 is 18413097.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 79031481 - 2⁷ = 79031353 is a prime.

It is a super-2 number, since 2×79031481² = 12491949978106722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (79031489) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13171911 + ... + 13171916.

It is an arithmetic number, because the mean of its divisors is an integer number (26343828).

Almost surely, 2^79031481 is an apocalyptic number.

It is an amenable number.

79031481 is a deficient number, since it is larger than the sum of its proper divisors (26343831).

79031481 is a wasteful number, since it uses less digits than its factorization.

79031481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26343830.

The product of its (nonzero) digits is 6048, while the sum is 33.

The square root of 79031481 is about 8889.9651855336. The cubic root of 79031481 is about 429.1410308919.

The spelling of 79031481 in words is "seventy-nine million, thirty-one thousand, four hundred eighty-one".