39965012 has 12 divisors (see below), whose sum is σ = 70093716. Its totient is φ = 19938240.

The previous prime is 39964997. The next prime is 39965027. The reversal of 39965012 is 21056993.

It is an interprime number because it is at equal distance from previous prime (39964997) and next prime (39965027).

It can be written as a sum of positive squares in 2 ways, for example, as 29441476 + 10523536 = 5426^2 + 3244^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8993 + ... + 12680.

It is an arithmetic number, because the mean of its divisors is an integer number (5841143).

Almost surely, 2^39965012 is an apocalyptic number.

It is an amenable number.

39965012 is a deficient number, since it is larger than the sum of its proper divisors (30128704).

39965012 is a wasteful number, since it uses less digits than its factorization.

39965012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22138 (or 22136 counting only the distinct ones).

The product of its (nonzero) digits is 14580, while the sum is 35.

The square root of 39965012 is about 6321.7886709380. The cubic root of 39965012 is about 341.8954458504.

The spelling of 39965012 in words is "thirty-nine million, nine hundred sixty-five thousand, twelve".