63691464 has 16 divisors (see below), whose sum is σ = 159228720. Its totient is φ = 21230480.

The previous prime is 63691457. The next prime is 63691493. The reversal of 63691464 is 46419636.

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, 1326882 + ... + 1326929.

It is an arithmetic number, because the mean of its divisors is an integer number (9951795).

Almost surely, 2^63691464 is an apocalyptic number.

It is an amenable number.

63691464 is an abundant number, since it is smaller than the sum of its proper divisors (95537256).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

63691464 is a wasteful number, since it uses less digits than its factorization.

63691464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2653820 (or 2653816 counting only the distinct ones).

The product of its digits is 93312, while the sum is 39.

The square root of 63691464 is about 7980.6932029743. The cubic root of 63691464 is about 399.3561809653.

The spelling of 63691464 in words is "sixty-three million, six hundred ninety-one thousand, four hundred sixty-four".