64489299 has 16 divisors (see below), whose sum is σ = 98383872. Its totient is φ = 36808128.

The previous prime is 64489297. The next prime is 64489307. The reversal of 64489299 is 99298446.

It is a happy number.

64489299 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 64489299 - 2¹ = 64489297 is a prime.

It is a super-2 number, since 2×64489299² = 8317739371022802, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (64489291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29022 + ... + 31164.

It is an arithmetic number, because the mean of its divisors is an integer number (6148992).

Almost surely, 2^64489299 is an apocalyptic number.

64489299 is a deficient number, since it is larger than the sum of its proper divisors (33894573).

64489299 is a wasteful number, since it uses less digits than its factorization.

64489299 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3586.

The product of its digits is 1119744, while the sum is 51.

The square root of 64489299 is about 8030.5229593097. The cubic root of 64489299 is about 401.0167860918.

The spelling of 64489299 in words is "sixty-four million, four hundred eighty-nine thousand, two hundred ninety-nine".