439696939 has 6 divisors (see below), whose sum is σ = 483303380. Its totient is φ = 399724380.

The previous prime is 439696921. The next prime is 439696949. The reversal of 439696939 is 939696934.

It is not a de Polignac number, because 439696939 - 2¹¹ = 439694891 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (439696949) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1816809 + ... + 1817050.

Almost surely, 2^439696939 is an apocalyptic number.

439696939 is a deficient number, since it is larger than the sum of its proper divisors (43606441).

439696939 is a wasteful number, since it uses less digits than its factorization.

439696939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3633881 (or 3633870 counting only the distinct ones).

The product of its digits is 8503056, while the sum is 58.

The square root of 439696939 is about 20968.9517859143. The cubic root of 439696939 is about 760.4158268057.

The spelling of 439696939 in words is "four hundred thirty-nine million, six hundred ninety-six thousand, nine hundred thirty-nine".