37638668 has 6 divisors (see below), whose sum is σ = 65867676. Its totient is φ = 18819332.

The previous prime is 37638613. The next prime is 37638673. The reversal of 37638668 is 86683673.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4704830 + ... + 4704837.

It is an arithmetic number, because the mean of its divisors is an integer number (10977946).

Almost surely, 2^37638668 is an apocalyptic number.

It is an amenable number.

37638668 is a deficient number, since it is larger than the sum of its proper divisors (28229008).

37638668 is a wasteful number, since it uses less digits than its factorization.

37638668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9409671 (or 9409669 counting only the distinct ones).

The product of its digits is 870912, while the sum is 47.

The square root of 37638668 is about 6135.0361042132. The cubic root of 37638668 is about 335.1285405587.

The spelling of 37638668 in words is "thirty-seven million, six hundred thirty-eight thousand, six hundred sixty-eight".