64939327 has 8 divisors (see below), whose sum is σ = 69949440. Its totient is φ = 60111480.

The previous prime is 64939309. The next prime is 64939333. The reversal of 64939327 is 72393946.

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

It is a de Polignac number, because none of the positive numbers 2^k-64939327 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64939307) 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 7 ways as a sum of consecutive naturals, for example, 44827 + ... + 46252.

It is an arithmetic number, because the mean of its divisors is an integer number (8743680).

Almost surely, 2^64939327 is an apocalyptic number.

64939327 is a deficient number, since it is larger than the sum of its proper divisors (5010113).

64939327 is a wasteful number, since it uses less digits than its factorization.

64939327 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91133.

The product of its digits is 244944, while the sum is 43.

The square root of 64939327 is about 8058.4940900890. The cubic root of 64939327 is about 401.9474346093.

The spelling of 64939327 in words is "sixty-four million, nine hundred thirty-nine thousand, three hundred twenty-seven".