63961392 has 40 divisors (see below), whose sum is σ = 180256320. Its totient is φ = 19382080.

The previous prime is 63961357. The next prime is 63961393. The reversal of 63961392 is 29316936.

It is a self number, because there is not a number n which added to its sum of digits gives 63961392.

It is not an unprimeable number, because it can be changed into a prime (63961393) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60042 + ... + 61097.

It is an arithmetic number, because the mean of its divisors is an integer number (4506408).

Almost surely, 2^63961392 is an apocalyptic number.

It is an amenable number.

63961392 is an abundant number, since it is smaller than the sum of its proper divisors (116294928).

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

63961392 is a wasteful number, since it uses less digits than its factorization.

63961392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121161 (or 121155 counting only the distinct ones).

The product of its digits is 52488, while the sum is 39.

The square root of 63961392 is about 7997.5866359796. The cubic root of 63961392 is about 399.9195504874.

The spelling of 63961392 in words is "sixty-three million, nine hundred sixty-one thousand, three hundred ninety-two".