63694464 has 64 divisors (see below), whose sum is σ = 173799840. Its totient is φ = 20653056.

The previous prime is 63694459. The next prime is 63694483. The reversal of 63694464 is 46449636.

63694464 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 11967 + ... + 16449.

Almost surely, 2^63694464 is an apocalyptic number.

63694464 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 63694464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (86899920).

63694464 is an abundant number, since it is smaller than the sum of its proper divisors (110105376).

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

63694464 is a wasteful number, since it uses less digits than its factorization.

63694464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4537 (or 4525 counting only the distinct ones).

The product of its digits is 373248, while the sum is 42.

The square root of 63694464 is about 7980.8811543588. The cubic root of 63694464 is about 399.3624510348.

The spelling of 63694464 in words is "sixty-three million, six hundred ninety-four thousand, four hundred sixty-four".