64488998 has 12 divisors (see below), whose sum is σ = 112526892. Its totient is φ = 27638100.

The previous prime is 64488997. The next prime is 64489013. The reversal of 64488998 is 89988446.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64488997) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 328928 + ... + 329123.

It is an arithmetic number, because the mean of its divisors is an integer number (9377241).

Almost surely, 2^64488998 is an apocalyptic number.

64488998 is a deficient number, since it is larger than the sum of its proper divisors (48037894).

64488998 is a wasteful number, since it uses less digits than its factorization.

64488998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 658067 (or 658060 counting only the distinct ones).

The product of its digits is 3981312, while the sum is 56.

The square root of 64488998 is about 8030.5042182917. The cubic root of 64488998 is about 401.0161621834.

The spelling of 64488998 in words is "sixty-four million, four hundred eighty-eight thousand, nine hundred ninety-eight".