64499 has 2 divisors, whose sum is σ = 64500. Its totient is φ = 64498.

The previous prime is 64489. The next prime is 64513. The reversal of 64499 is 99446.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 64499 - 2⁴ = 64483 is a prime.

It is a super-3 number, since 3×64499³ = 804970933330497, which contains 333 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (64439) 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 as a sum of consecutive naturals, namely, 32249 + 32250.

It is an arithmetic number, because the mean of its divisors is an integer number (32250).

2⁶⁴⁴⁹⁹ is an apocalyptic number.

64499 is a deficient number, since it is larger than the sum of its proper divisors (1).

64499 is an equidigital number, since it uses as much as digits as its factorization.

64499 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7776, while the sum is 32.

The square root of 64499 is about 253.9665332283. The cubic root of 64499 is about 40.1036893142.

The spelling of 64499 in words is "sixty-four thousand, four hundred ninety-nine".