63964476 has 18 divisors (see below), whose sum is σ = 161688072. Its totient is φ = 21321480.

The previous prime is 63964471. The next prime is 63964487. The reversal of 63964476 is 67446936.

63964476 is a `hidden beast` number, since 639 + 6 + 4 + 4 + 7 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63964471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 888360 + ... + 888431.

Almost surely, 2^63964476 is an apocalyptic number.

It is an amenable number.

63964476 is an abundant number, since it is smaller than the sum of its proper divisors (97723596).

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

63964476 is a wasteful number, since it uses less digits than its factorization.

63964476 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1776801 (or 1776796 counting only the distinct ones).

The product of its digits is 653184, while the sum is 45.

The square root of 63964476 is about 7997.7794418201. The cubic root of 63964476 is about 399.9259779694.

The spelling of 63964476 in words is "sixty-three million, nine hundred sixty-four thousand, four hundred seventy-six".