656982039 has 16 divisors (see below), whose sum is σ = 1033410560. Its totient is φ = 363307680.

The previous prime is 656981951. The next prime is 656982041. The reversal of 656982039 is 930289656.

It is not a de Polignac number, because 656982039 - 2¹¹ = 656979991 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (656982439) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 503944 + ... + 505245.

It is an arithmetic number, because the mean of its divisors is an integer number (64588160).

Almost surely, 2^656982039 is an apocalyptic number.

656982039 is a deficient number, since it is larger than the sum of its proper divisors (376428521).

656982039 is a wasteful number, since it uses less digits than its factorization.

656982039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1009230.

The product of its (nonzero) digits is 699840, while the sum is 48.

The square root of 656982039 is about 25631.6608708839. The cubic root of 656982039 is about 869.3296633172.

The spelling of 656982039 in words is "six hundred fifty-six million, nine hundred eighty-two thousand, thirty-nine".