63649372 has 12 divisors (see below), whose sum is σ = 116229456. Its totient is φ = 30440960.

The previous prime is 63649319. The next prime is 63649393. The reversal of 63649372 is 27394636.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 345829 + ... + 346012.

It is an arithmetic number, because the mean of its divisors is an integer number (9685788).

Almost surely, 2^63649372 is an apocalyptic number.

It is an amenable number.

63649372 is a deficient number, since it is larger than the sum of its proper divisors (52580084).

63649372 is a wasteful number, since it uses less digits than its factorization.

63649372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 691868 (or 691866 counting only the distinct ones).

The product of its digits is 163296, while the sum is 40.

The square root of 63649372 is about 7978.0556528518. The cubic root of 63649372 is about 399.2681869406.

The spelling of 63649372 in words is "sixty-three million, six hundred forty-nine thousand, three hundred seventy-two".