64575814 has 4 divisors (see below), whose sum is σ = 96863724. Its totient is φ = 32287906.

The previous prime is 64575811. The next prime is 64575853. The reversal of 64575814 is 41857546.

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

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64575811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16143952 + ... + 16143955.

It is an arithmetic number, because the mean of its divisors is an integer number (24215931).

Almost surely, 2^64575814 is an apocalyptic number.

64575814 is a deficient number, since it is larger than the sum of its proper divisors (32287910).

64575814 is a wasteful number, since it uses less digits than its factorization.

64575814 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32287909.

The product of its digits is 134400, while the sum is 40.

The square root of 64575814 is about 8035.9077894162. The cubic root of 64575814 is about 401.1960327000.

The spelling of 64575814 in words is "sixty-four million, five hundred seventy-five thousand, eight hundred fourteen".