63632649 has 8 divisors (see below), whose sum is σ = 89834400. Its totient is φ = 39926336.

The previous prime is 63632633. The next prime is 63632669. The reversal of 63632649 is 94623636.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 63632649 - 2⁴ = 63632633 is a prime.

It is a super-2 number, since 2×63632649² = 8098228037514402, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (63632609) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 623799 + ... + 623900.

It is an arithmetic number, because the mean of its divisors is an integer number (11229300).

Almost surely, 2^63632649 is an apocalyptic number.

It is an amenable number.

63632649 is a deficient number, since it is larger than the sum of its proper divisors (26201751).

63632649 is a wasteful number, since it uses less digits than its factorization.

63632649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1247719.

The product of its digits is 139968, while the sum is 39.

The square root of 63632649 is about 7977.0075216211. The cubic root of 63632649 is about 399.2332164634.

The spelling of 63632649 in words is "sixty-three million, six hundred thirty-two thousand, six hundred forty-nine".