64019223 has 12 divisors (see below), whose sum is σ = 92570400. Its totient is φ = 42634176.

The previous prime is 64019201. The next prime is 64019233. The reversal of 64019223 is 32291046.

64019223 is a `hidden beast` number, since 640 + 19 + 2 + 2 + 3 = 666.

It is not a de Polignac number, because 64019223 - 2⁸ = 64018967 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64019233) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6703 + ... + 13151.

It is an arithmetic number, because the mean of its divisors is an integer number (7714200).

Almost surely, 2^64019223 is an apocalyptic number.

64019223 is a deficient number, since it is larger than the sum of its proper divisors (28551177).

64019223 is a wasteful number, since it uses less digits than its factorization.

64019223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7558 (or 7555 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 64019223 is about 8001.2013472978. The cubic root of 64019223 is about 400.0400439077.

The spelling of 64019223 in words is "sixty-four million, nineteen thousand, two hundred twenty-three".