64563214 has 4 divisors (see below), whose sum is σ = 96844824. Its totient is φ = 32281606.

The previous prime is 64563209. The next prime is 64563223. The reversal of 64563214 is 41236546.

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

It is a Smith number, since the sum of its digits (31) 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 an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16140802 + ... + 16140805.

It is an arithmetic number, because the mean of its divisors is an integer number (24211206).

Almost surely, 2^64563214 is an apocalyptic number.

64563214 is a deficient number, since it is larger than the sum of its proper divisors (32281610).

64563214 is a wasteful number, since it uses less digits than its factorization.

64563214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32281609.

The product of its digits is 17280, while the sum is 31.

The square root of 64563214 is about 8035.1237700486. The cubic root of 64563214 is about 401.1699372807.

The spelling of 64563214 in words is "sixty-four million, five hundred sixty-three thousand, two hundred fourteen".