6653972 has 24 divisors (see below), whose sum is σ = 12850152. Its totient is φ = 2995200.

The previous prime is 6653957. The next prime is 6653989. The reversal of 6653972 is 2793566.

6653972 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 1336336 + 5317636 = 1156^2 + 2306^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 572 + ... + 3692.

It is an arithmetic number, because the mean of its divisors is an integer number (535423).

Almost surely, 2^6653972 is an apocalyptic number.

It is an amenable number.

6653972 is a deficient number, since it is larger than the sum of its proper divisors (6196180).

6653972 is a wasteful number, since it uses less digits than its factorization.

6653972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3179 (or 3177 counting only the distinct ones).

The product of its digits is 68040, while the sum is 38.

The square root of 6653972 is about 2579.5294144475. The cubic root of 6653972 is about 188.0876684827.

The spelling of 6653972 in words is "six million, six hundred fifty-three thousand, nine hundred seventy-two".