64933339 has 4 divisors (see below), whose sum is σ = 65755360. Its totient is φ = 64111320.

The previous prime is 64933333. The next prime is 64933343. The reversal of 64933339 is 93333946.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 93333946 = 2 ⋅46666973.

It is a cyclic number.

It is not a de Polignac number, because 64933339 - 2³ = 64933331 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64933331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 410892 + ... + 411049.

It is an arithmetic number, because the mean of its divisors is an integer number (16438840).

Almost surely, 2^64933339 is an apocalyptic number.

64933339 is a deficient number, since it is larger than the sum of its proper divisors (822021).

64933339 is an equidigital number, since it uses as much as digits as its factorization.

64933339 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 822020.

The product of its digits is 157464, while the sum is 40.

The square root of 64933339 is about 8058.1225480877. The cubic root of 64933339 is about 401.9350798195.

The spelling of 64933339 in words is "sixty-four million, nine hundred thirty-three thousand, three hundred thirty-nine".