64535933 has 16 divisors (see below), whose sum is σ = 83237760. Its totient is φ = 48552000.

The previous prime is 64535929. The next prime is 64535959. The reversal of 64535933 is 33953546.

It is not a de Polignac number, because 64535933 - 2² = 64535929 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 (64535963) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12218 + ... + 16683.

It is an arithmetic number, because the mean of its divisors is an integer number (5202360).

Almost surely, 2^64535933 is an apocalyptic number.

It is an amenable number.

64535933 is a deficient number, since it is larger than the sum of its proper divisors (18701827).

64535933 is a wasteful number, since it uses less digits than its factorization.

64535933 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28948.

The product of its digits is 145800, while the sum is 38.

The square root of 64535933 is about 8033.4259814851. The cubic root of 64535933 is about 401.1134249200.

The spelling of 64535933 in words is "sixty-four million, five hundred thirty-five thousand, nine hundred thirty-three".