63620988 has 48 divisors (see below), whose sum is σ = 152409600. Its totient is φ = 20647744.

The previous prime is 63620941. The next prime is 63620993. The reversal of 63620988 is 88902636.

It is a super-2 number, since 2×63620988² = 8095260228192288, which contains 22 as substring.

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, 105913 + ... + 106511.

It is an arithmetic number, because the mean of its divisors is an integer number (3175200).

Almost surely, 2^63620988 is an apocalyptic number.

It is an amenable number.

63620988 is an abundant number, since it is smaller than the sum of its proper divisors (88788612).

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

63620988 is a wasteful number, since it uses less digits than its factorization.

63620988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 826 (or 824 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 42.

The square root of 63620988 is about 7976.2765749440. The cubic root of 63620988 is about 399.2088278148.

The spelling of 63620988 in words is "sixty-three million, six hundred twenty thousand, nine hundred eighty-eight".