64368999 has 12 divisors (see below), whose sum is σ = 96421416. Its totient is φ = 42912504.

The previous prime is 64368971. The next prime is 64369007. The reversal of 64368999 is 99986346.

It is a happy number.

It is not a de Polignac number, because 64368999 - 2²⁰ = 63320423 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64368929) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 132204 + ... + 132689.

It is an arithmetic number, because the mean of its divisors is an integer number (8035118).

Almost surely, 2^64368999 is an apocalyptic number.

64368999 is a deficient number, since it is larger than the sum of its proper divisors (32052417).

64368999 is an equidigital number, since it uses as much as digits as its factorization.

64368999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 264908 (or 264896 counting only the distinct ones).

The product of its digits is 2519424, while the sum is 54.

The square root of 64368999 is about 8023.0292907355. The cubic root of 64368999 is about 400.7672751975.

The spelling of 64368999 in words is "sixty-four million, three hundred sixty-eight thousand, nine hundred ninety-nine".