63888898 has 4 divisors (see below), whose sum is σ = 95833350. Its totient is φ = 31944448.

The previous prime is 63888893. The next prime is 63888911. The reversal of 63888898 is 89888836.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 51165409 + 12723489 = 7153^2 + 3567^2 .

It is not an unprimeable number, because it can be changed into a prime (63888893) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15972223 + ... + 15972226.

Almost surely, 2^63888898 is an apocalyptic number.

63888898 is a deficient number, since it is larger than the sum of its proper divisors (31944452).

63888898 is a wasteful number, since it uses less digits than its factorization.

63888898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31944451.

The product of its digits is 5308416, while the sum is 58.

The square root of 63888898 is about 7993.0531087939. The cubic root of 63888898 is about 399.7684034335.

The spelling of 63888898 in words is "sixty-three million, eight hundred eighty-eight thousand, eight hundred ninety-eight".