63831444 has 12 divisors (see below), whose sum is σ = 148940064. Its totient is φ = 21277144.

The previous prime is 63831433. The next prime is 63831457. The reversal of 63831444 is 44413836.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-4 number, since 4×63831444⁴ (a number of 32 digits) contains 4444 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2659632 + ... + 2659655.

It is an arithmetic number, because the mean of its divisors is an integer number (12411672).

Almost surely, 2^63831444 is an apocalyptic number.

It is an amenable number.

63831444 is an abundant number, since it is smaller than the sum of its proper divisors (85108620).

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

63831444 is a wasteful number, since it uses less digits than its factorization.

63831444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5319294 (or 5319292 counting only the distinct ones).

The product of its digits is 27648, while the sum is 33.

The square root of 63831444 is about 7989.4583045411. The cubic root of 63831444 is about 399.6485329344.

The spelling of 63831444 in words is "sixty-three million, eight hundred thirty-one thousand, four hundred forty-four".