939840964 has 6 divisors (see below), whose sum is σ = 1644721694. Its totient is φ = 469920480.

The previous prime is 939840949. The next prime is 939840977. The reversal of 939840964 is 469048939.

It can be written as a sum of positive squares in only one way, i.e., 508863364 + 430977600 = 22558^2 + 20760^2 .

It is a super-2 number, since 2×939840964² = 1766602075224898592, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 117480117 + ... + 117480124.

Almost surely, 2^939840964 is an apocalyptic number.

It is an amenable number.

939840964 is a deficient number, since it is larger than the sum of its proper divisors (704880730).

939840964 is a wasteful number, since it uses less digits than its factorization.

939840964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234960245 (or 234960243 counting only the distinct ones).

The product of its (nonzero) digits is 1679616, while the sum is 52.

The square root of 939840964 is about 30656.8257326162. The cubic root of 939840964 is about 979.5308611116.

The spelling of 939840964 in words is "nine hundred thirty-nine million, eight hundred forty thousand, nine hundred sixty-four".