63431464 has 8 divisors (see below), whose sum is σ = 118934010. Its totient is φ = 31715728.

The previous prime is 63431429. The next prime is 63431479. The reversal of 63431464 is 46413436.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 49815364 + 13616100 = 7058^2 + 3690^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3964459 + ... + 3964474.

Almost surely, 2^63431464 is an apocalyptic number.

It is an amenable number.

63431464 is a deficient number, since it is larger than the sum of its proper divisors (55502546).

63431464 is a wasteful number, since it uses less digits than its factorization.

63431464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7928939 (or 7928935 counting only the distinct ones).

The product of its digits is 20736, while the sum is 31.

The square root of 63431464 is about 7964.3872331775. The cubic root of 63431464 is about 398.8120252830.

The spelling of 63431464 in words is "sixty-three million, four hundred thirty-one thousand, four hundred sixty-four".