76439013 has 24 divisors (see below), whose sum is σ = 118052928. Its totient is φ = 43094592.

The previous prime is 76438997. The next prime is 76439017. The reversal of 76439013 is 31093467.

It is not a de Polignac number, because 76439013 - 2⁴ = 76438997 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76439017) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 468870 + ... + 469032.

It is an arithmetic number, because the mean of its divisors is an integer number (4918872).

Almost surely, 2^76439013 is an apocalyptic number.

It is an amenable number.

76439013 is a deficient number, since it is larger than the sum of its proper divisors (41613915).

76439013 is a wasteful number, since it uses less digits than its factorization.

76439013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 473 (or 310 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 33.

The square root of 76439013 is about 8742.9407524013. The cubic root of 76439013 is about 424.3963989736.

The spelling of 76439013 in words is "seventy-six million, four hundred thirty-nine thousand, thirteen".