39985796 has 12 divisors (see below), whose sum is σ = 70363020. Its totient is φ = 19882080.

The previous prime is 39985787. The next prime is 39985837. The reversal of 39985796 is 69758993.

It can be written as a sum of positive squares in 2 ways, for example, as 21752896 + 18232900 = 4664^2 + 4270^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26891 + ... + 28338.

It is an arithmetic number, because the mean of its divisors is an integer number (5863585).

Almost surely, 2^39985796 is an apocalyptic number.

It is an amenable number.

39985796 is a deficient number, since it is larger than the sum of its proper divisors (30377224).

39985796 is a wasteful number, since it uses less digits than its factorization.

39985796 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55414 (or 55412 counting only the distinct ones).

The product of its digits is 3674160, while the sum is 56.

The square root of 39985796 is about 6323.4322958343. The cubic root of 39985796 is about 341.9547037122.

The spelling of 39985796 in words is "thirty-nine million, nine hundred eighty-five thousand, seven hundred ninety-six".