63720098 has 24 divisors (see below), whose sum is σ = 105480468. Its totient is φ = 28846272.

The previous prime is 63720089. The next prime is 63720113. The reversal of 63720098 is 89002736.

It can be written as a sum of positive squares in 6 ways, for example, as 5396329 + 58323769 = 2323^2 + 7637^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16136 + ... + 19692.

Almost surely, 2^63720098 is an apocalyptic number.

63720098 is a deficient number, since it is larger than the sum of its proper divisors (41760370).

63720098 is a wasteful number, since it uses less digits than its factorization.

63720098 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3638 (or 3625 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 63720098 is about 7982.4869558302. The cubic root of 63720098 is about 399.4160186627.

The spelling of 63720098 in words is "sixty-three million, seven hundred twenty thousand, ninety-eight".