64899 has 6 divisors (see below), whose sum is σ = 93756. Its totient is φ = 43260.

The previous prime is 64891. The next prime is 64901. The reversal of 64899 is 99846.

64899 is a `hidden beast` number, since 648 + 9 + 9 = 666.

It is not a de Polignac number, because 64899 - 2³ = 64891 is a prime.

It is a nialpdrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (64891) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3597 + ... + 3614.

It is an arithmetic number, because the mean of its divisors is an integer number (15626).

2⁶⁴⁸⁹⁹ is an apocalyptic number.

64899 is a deficient number, since it is larger than the sum of its proper divisors (28857).

64899 is a wasteful number, since it uses less digits than its factorization.

64899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7217 (or 7214 counting only the distinct ones).

The product of its digits is 15552, while the sum is 36.

The square root of 64899 is about 254.7528213779. The cubic root of 64899 is about 40.1864214926.

It can be divided in two parts, 648 and 99, that added together give a palindrome (747).

The spelling of 64899 in words is "sixty-four thousand, eight hundred ninety-nine".