64085923 has 4 divisors (see below), whose sum is σ = 69911928. Its totient is φ = 58259920.

The previous prime is 64085921. The next prime is 64086007. The reversal of 64085923 is 32958046.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 64085923 - 2¹ = 64085921 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64085921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2912986 + ... + 2913007.

It is an arithmetic number, because the mean of its divisors is an integer number (17477982).

Almost surely, 2^64085923 is an apocalyptic number.

64085923 is a deficient number, since it is larger than the sum of its proper divisors (5826005).

64085923 is a wasteful number, since it uses less digits than its factorization.

64085923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5826004.

The product of its (nonzero) digits is 51840, while the sum is 37.

The square root of 64085923 is about 8005.3683862768. The cubic root of 64085923 is about 400.1789262016.

The spelling of 64085923 in words is "sixty-four million, eighty-five thousand, nine hundred twenty-three".