63952889 has 24 divisors (see below), whose sum is σ = 87409728. Its totient is φ = 45995040.

The previous prime is 63952883. The next prime is 63952901. The reversal of 63952889 is 98825936.

It is a de Polignac number, because none of the positive numbers 2^k-63952889 is a prime.

It is a super-2 number, since 2×63952889² = 8179944022892642, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (63952883) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2444 + ... + 11570.

It is an arithmetic number, because the mean of its divisors is an integer number (3642072).

Almost surely, 2^63952889 is an apocalyptic number.

It is an amenable number.

63952889 is a deficient number, since it is larger than the sum of its proper divisors (23456839).

63952889 is a wasteful number, since it uses less digits than its factorization.

63952889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9165 (or 9158 counting only the distinct ones).

The product of its digits is 933120, while the sum is 50.

The square root of 63952889 is about 7997.0550204435. The cubic root of 63952889 is about 399.9018279909.

The spelling of 63952889 in words is "sixty-three million, nine hundred fifty-two thousand, eight hundred eighty-nine".