64332893 has 4 divisors (see below), whose sum is σ = 64501248. Its totient is φ = 64164540.

The previous prime is 64332889. The next prime is 64332923. The reversal of 64332893 is 39823346.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 39823346 = 2 ⋅19911673.

It is a cyclic number.

It is not a de Polignac number, because 64332893 - 2² = 64332889 is a prime.

It is a super-2 number, since 2×64332893² = 8277442243498898, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64332823) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 83603 + ... + 84368.

It is an arithmetic number, because the mean of its divisors is an integer number (16125312).

Almost surely, 2^64332893 is an apocalyptic number.

It is an amenable number.

64332893 is a deficient number, since it is larger than the sum of its proper divisors (168355).

64332893 is a wasteful number, since it uses less digits than its factorization.

64332893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168354.

The product of its digits is 93312, while the sum is 38.

The square root of 64332893 is about 8020.7788275204. The cubic root of 64332893 is about 400.6923280965.

The spelling of 64332893 in words is "sixty-four million, three hundred thirty-two thousand, eight hundred ninety-three".