63988488 has 32 divisors (see below), whose sum is σ = 177746400. Its totient is φ = 21329424.

The previous prime is 63988469. The next prime is 63988489. The reversal of 63988488 is 88488936.

It is a super-2 number, since 2×63988488² = 8189053193052288, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (63988489) 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, 147906 + ... + 148337.

It is an arithmetic number, because the mean of its divisors is an integer number (5554575).

Almost surely, 2^63988488 is an apocalyptic number.

It is an amenable number.

63988488 is an abundant number, since it is smaller than the sum of its proper divisors (113757912).

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

63988488 is a wasteful number, since it uses less digits than its factorization.

63988488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 296258 (or 296248 counting only the distinct ones).

The product of its digits is 2654208, while the sum is 54.

The square root of 63988488 is about 7999.2804676421. The cubic root of 63988488 is about 399.9760152285.

The spelling of 63988488 in words is "sixty-three million, nine hundred eighty-eight thousand, four hundred eighty-eight".