64334999 has 2 divisors, whose sum is σ = 64335000. Its totient is φ = 64334998.

The previous prime is 64334947. The next prime is 64335001. The reversal of 64334999 is 99943346.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 64334999 - 2²⁰ = 63286423 is a prime.

Together with 64335001, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64334929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32167499 + 32167500.

It is an arithmetic number, because the mean of its divisors is an integer number (32167500).

Almost surely, 2^64334999 is an apocalyptic number.

64334999 is a deficient number, since it is larger than the sum of its proper divisors (1).

64334999 is an equidigital number, since it uses as much as digits as its factorization.

64334999 is an evil number, because the sum of its binary digits is even.

The product of its digits is 629856, while the sum is 47.

The square root of 64334999 is about 8020.9101104550. The cubic root of 64334999 is about 400.6967004002.

The spelling of 64334999 in words is "sixty-four million, three hundred thirty-four thousand, nine hundred ninety-nine".