64884998 has 4 divisors (see below), whose sum is σ = 97327500. Its totient is φ = 32442498.

The previous prime is 64884997. The next prime is 64885003. The reversal of 64884998 is 89948846.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64884997) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16221248 + ... + 16221251.

It is an arithmetic number, because the mean of its divisors is an integer number (24331875).

Almost surely, 2^64884998 is an apocalyptic number.

64884998 is a deficient number, since it is larger than the sum of its proper divisors (32442502).

64884998 is a wasteful number, since it uses less digits than its factorization.

64884998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32442501.

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

The square root of 64884998 is about 8055.1224695842. The cubic root of 64884998 is about 401.8353120285.

The spelling of 64884998 in words is "sixty-four million, eight hundred eighty-four thousand, nine hundred ninety-eight".