64752899 has 4 divisors (see below), whose sum is σ = 66332280. Its totient is φ = 63173520.

The previous prime is 64752871. The next prime is 64752901. The reversal of 64752899 is 99825746.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 64752899 - 2²⁰ = 63704323 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64752829) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 789629 + ... + 789710.

It is an arithmetic number, because the mean of its divisors is an integer number (16583070).

Almost surely, 2^64752899 is an apocalyptic number.

64752899 is a deficient number, since it is larger than the sum of its proper divisors (1579381).

64752899 is a wasteful number, since it uses less digits than its factorization.

64752899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1579380.

The product of its digits is 1088640, while the sum is 50.

The square root of 64752899 is about 8046.9186027945. The cubic root of 64752899 is about 401.5624286787.

The spelling of 64752899 in words is "sixty-four million, seven hundred fifty-two thousand, eight hundred ninety-nine".