79439476 has 12 divisors (see below), whose sum is σ = 140923972. Its totient is φ = 39175488.

The previous prime is 79439449. The next prime is 79439483. The reversal of 79439476 is 67493497.

It can be written as a sum of positive squares in 2 ways, for example, as 52128400 + 27311076 = 7220^2 + 5226^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 135735 + ... + 136318.

Almost surely, 2^79439476 is an apocalyptic number.

It is an amenable number.

79439476 is a deficient number, since it is larger than the sum of its proper divisors (61484496).

79439476 is a wasteful number, since it uses less digits than its factorization.

79439476 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 272130 (or 272128 counting only the distinct ones).

The product of its digits is 1143072, while the sum is 49.

The square root of 79439476 is about 8912.8825864588. The cubic root of 79439476 is about 429.8782348572.

The spelling of 79439476 in words is "seventy-nine million, four hundred thirty-nine thousand, four hundred seventy-six".