64233499 has 4 divisors (see below), whose sum is σ = 70072920. Its totient is φ = 58394080.

The previous prime is 64233493. The next prime is 64233527. The reversal of 64233499 is 99433246.

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 64233499 - 2²³ = 55844891 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64233493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2919694 + ... + 2919715.

It is an arithmetic number, because the mean of its divisors is an integer number (17518230).

Almost surely, 2^64233499 is an apocalyptic number.

64233499 is a deficient number, since it is larger than the sum of its proper divisors (5839421).

64233499 is a wasteful number, since it uses less digits than its factorization.

64233499 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5839420.

The product of its digits is 139968, while the sum is 40.

The square root of 64233499 is about 8014.5804007446. The cubic root of 64233499 is about 400.4858658470.

The spelling of 64233499 in words is "sixty-four million, two hundred thirty-three thousand, four hundred ninety-nine".