63893944 has 8 divisors (see below), whose sum is σ = 119801160. Its totient is φ = 31946968.

The previous prime is 63893933. The next prime is 63893953. The reversal of 63893944 is 44939836.

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

It is a hoax number, since the sum of its digits (46) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 63893894 and 63893903.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3993364 + ... + 3993379.

It is an arithmetic number, because the mean of its divisors is an integer number (14975145).

Almost surely, 2^63893944 is an apocalyptic number.

It is an amenable number.

63893944 is a deficient number, since it is larger than the sum of its proper divisors (55907216).

63893944 is a wasteful number, since it uses less digits than its factorization.

63893944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7986749 (or 7986745 counting only the distinct ones).

The product of its digits is 559872, while the sum is 46.

The square root of 63893944 is about 7993.3687516591. The cubic root of 63893944 is about 399.7789278403.

The spelling of 63893944 in words is "sixty-three million, eight hundred ninety-three thousand, nine hundred forty-four".