652978808 has 16 divisors (see below), whose sum is σ = 1228696560. Its totient is φ = 325326400.

The previous prime is 652978793. The next prime is 652978811. The reversal of 652978808 is 808879256.

It is a self number, because there is not a number n which added to its sum of digits gives 652978808.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 142988 + ... + 147483.

It is an arithmetic number, because the mean of its divisors is an integer number (76793535).

Almost surely, 2^652978808 is an apocalyptic number.

It is an amenable number.

652978808 is a deficient number, since it is larger than the sum of its proper divisors (575717752).

652978808 is a wasteful number, since it uses less digits than its factorization.

652978808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 290758 (or 290754 counting only the distinct ones).

The product of its (nonzero) digits is 1935360, while the sum is 53.

The square root of 652978808 is about 25553.4500214746. The cubic root of 652978808 is about 867.5603505922.

The spelling of 652978808 in words is "six hundred fifty-two million, nine hundred seventy-eight thousand, eight hundred eight".