63965244 has 48 divisors (see below), whose sum is σ = 171295488. Its totient is φ = 18198528.

The previous prime is 63965227. The next prime is 63965269. The reversal of 63965244 is 44256936.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20107 + ... + 23069.

It is an arithmetic number, because the mean of its divisors is an integer number (3568656).

Almost surely, 2^63965244 is an apocalyptic number.

It is an amenable number.

63965244 is an abundant number, since it is smaller than the sum of its proper divisors (107330244).

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

63965244 is a wasteful number, since it uses less digits than its factorization.

63965244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3234 (or 3232 counting only the distinct ones).

The product of its digits is 155520, while the sum is 39.

The square root of 63965244 is about 7997.8274550030. The cubic root of 63965244 is about 399.9275785553.

The spelling of 63965244 in words is "sixty-three million, nine hundred sixty-five thousand, two hundred forty-four".