63640496 has 20 divisors (see below), whose sum is σ = 123437784. Its totient is φ = 31785600.

The previous prime is 63640483. The next prime is 63640531. The reversal of 63640496 is 69404636.

It is a happy number.

63640496 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×63640496² = 8100225462252032, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19631 + ... + 22641.

Almost surely, 2^63640496 is an apocalyptic number.

It is an amenable number.

63640496 is a deficient number, since it is larger than the sum of its proper divisors (59797288).

63640496 is a wasteful number, since it uses less digits than its factorization.

63640496 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4340 (or 4334 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 38.

The square root of 63640496 is about 7977.4993575681. The cubic root of 63640496 is about 399.2496265628.

The spelling of 63640496 in words is "sixty-three million, six hundred forty thousand, four hundred ninety-six".