39965704 has 8 divisors (see below), whose sum is σ = 74935710. Its totient is φ = 19982848.

The previous prime is 39965689. The next prime is 39965707. The reversal of 39965704 is 40756993.

It can be written as a sum of positive squares in only one way, i.e., 32512804 + 7452900 = 5702^2 + 2730^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (39965707) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2497849 + ... + 2497864.

Almost surely, 2^39965704 is an apocalyptic number.

It is an amenable number.

39965704 is a deficient number, since it is larger than the sum of its proper divisors (34970006).

39965704 is a wasteful number, since it uses less digits than its factorization.

39965704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4995719 (or 4995715 counting only the distinct ones).

The product of its (nonzero) digits is 204120, while the sum is 43.

The square root of 39965704 is about 6321.8434020466. The cubic root of 39965704 is about 341.8974191622.

The spelling of 39965704 in words is "thirty-nine million, nine hundred sixty-five thousand, seven hundred four".