39984564 has 24 divisors (see below), whose sum is σ = 94261888. Its totient is φ = 13190400.

The previous prime is 39984563. The next prime is 39984583. The reversal of 39984564 is 46548993.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39984563) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16012 + ... + 18339.

Almost surely, 2^39984564 is an apocalyptic number.

It is an amenable number.

39984564 is an abundant number, since it is smaller than the sum of its proper divisors (54277324).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

39984564 is a wasteful number, since it uses less digits than its factorization.

39984564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34455 (or 34453 counting only the distinct ones).

The product of its digits is 933120, while the sum is 48.

The square root of 39984564 is about 6323.3348796343. The cubic root of 39984564 is about 341.9511916941.

The spelling of 39984564 in words is "thirty-nine million, nine hundred eighty-four thousand, five hundred sixty-four".