64984499 has 4 divisors (see below), whose sum is σ = 67809936. Its totient is φ = 62159064.

The previous prime is 64984487. The next prime is 64984529. The reversal of 64984499 is 99448946.

It is a happy number.

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

It is not a de Polignac number, because 64984499 - 2⁸ = 64984243 is a prime.

It is a super-2 number, since 2×64984499² = 8445970220562002, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 64984499.

It is not an unprimeable number, because it can be changed into a prime (64980499) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1412684 + ... + 1412729.

It is an arithmetic number, because the mean of its divisors is an integer number (16952484).

Almost surely, 2^64984499 is an apocalyptic number.

64984499 is a deficient number, since it is larger than the sum of its proper divisors (2825437).

64984499 is a wasteful number, since it uses less digits than its factorization.

64984499 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2825436.

The product of its digits is 2239488, while the sum is 53.

The square root of 64984499 is about 8061.2963597675. The cubic root of 64984499 is about 402.0406116409.

The spelling of 64984499 in words is "sixty-four million, nine hundred eighty-four thousand, four hundred ninety-nine".