64332239 has 8 divisors (see below), whose sum is σ = 66029040. Its totient is φ = 62641600.

The previous prime is 64332227. The next prime is 64332269. The reversal of 64332239 is 93223346.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 64332239 - 2¹⁶ = 64266703 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64332209) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25829 + ... + 28209.

It is an arithmetic number, because the mean of its divisors is an integer number (8253630).

Almost surely, 2^64332239 is an apocalyptic number.

64332239 is a deficient number, since it is larger than the sum of its proper divisors (1696801).

64332239 is a wasteful number, since it uses less digits than its factorization.

64332239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3081.

The product of its digits is 23328, while the sum is 32.

The square root of 64332239 is about 8020.7380583086. The cubic root of 64332239 is about 400.6909702962.

The spelling of 64332239 in words is "sixty-four million, three hundred thirty-two thousand, two hundred thirty-nine".