63944936 has 16 divisors (see below), whose sum is σ = 130796640. Its totient is φ = 29065840.

The previous prime is 63944929. The next prime is 63944963.

63944936 is nontrivially palindromic in base 10.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 363236 + ... + 363411.

It is an arithmetic number, because the mean of its divisors is an integer number (8174790).

Almost surely, 2^63944936 is an apocalyptic number.

It is an amenable number.

63944936 is an abundant number, since it is smaller than the sum of its proper divisors (66851704).

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

63944936 is a wasteful number, since it uses less digits than its factorization.

63944936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 726664 (or 726660 counting only the distinct ones).

The product of its digits is 419904, while the sum is 44.

The square root of 63944936 is about 7996.5577594362. The cubic root of 63944936 is about 399.8852504178.

The spelling of 63944936 in words is "sixty-three million, nine hundred forty-four thousand, nine hundred thirty-six".