64942933 has 8 divisors (see below), whose sum is σ = 71061120. Its totient is φ = 58860480.

The previous prime is 64942921. The next prime is 64942939. The reversal of 64942933 is 33924946.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-64942933 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 (64942939) 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, 5053 + ... + 12466.

It is an arithmetic number, because the mean of its divisors is an integer number (8882640).

Almost surely, 2^64942933 is an apocalyptic number.

It is an amenable number.

64942933 is a deficient number, since it is larger than the sum of its proper divisors (6118187).

64942933 is a wasteful number, since it uses less digits than its factorization.

64942933 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17867.

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

The square root of 64942933 is about 8058.7178260565. The cubic root of 64942933 is about 401.9548743519.

The spelling of 64942933 in words is "sixty-four million, nine hundred forty-two thousand, nine hundred thirty-three".