79943425 has 12 divisors (see below), whose sum is σ = 99325116. Its totient is φ = 63828800.

The previous prime is 79943411. The next prime is 79943441. The reversal of 79943425 is 52434997.

It can be written as a sum of positive squares in 6 ways, for example, as 11235904 + 68707521 = 3352^2 + 8289^2 .

It is not a de Polignac number, because 79943425 - 2⁹ = 79942913 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11055 + ... + 16795.

It is an arithmetic number, because the mean of its divisors is an integer number (8277093).

Almost surely, 2^79943425 is an apocalyptic number.

It is an amenable number.

79943425 is a deficient number, since it is larger than the sum of its proper divisors (19381691).

79943425 is a wasteful number, since it uses less digits than its factorization.

79943425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6308 (or 6303 counting only the distinct ones).

The product of its digits is 272160, while the sum is 43.

The square root of 79943425 is about 8941.1087120111. The cubic root of 79943425 is about 430.7853414345.

The spelling of 79943425 in words is "seventy-nine million, nine hundred forty-three thousand, four hundred twenty-five".