63960291 has 12 divisors (see below), whose sum is σ = 92456520. Its totient is φ = 42608160.

The previous prime is 63960271. The next prime is 63960301. The reversal of 63960291 is 19206936.

It is not a de Polignac number, because 63960291 - 2⁶ = 63960227 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (63960271) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21280 + ... + 24098.

It is an arithmetic number, because the mean of its divisors is an integer number (7704710).

Almost surely, 2^63960291 is an apocalyptic number.

63960291 is a deficient number, since it is larger than the sum of its proper divisors (28496229).

63960291 is a wasteful number, since it uses less digits than its factorization.

63960291 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5346 (or 5343 counting only the distinct ones).

The product of its (nonzero) digits is 17496, while the sum is 36.

The square root of 63960291 is about 7997.5178024184. The cubic root of 63960291 is about 399.9172558013.

The spelling of 63960291 in words is "sixty-three million, nine hundred sixty thousand, two hundred ninety-one".