64766223 has 20 divisors (see below), whose sum is σ = 99874368. Its totient is φ = 41783040.

The previous prime is 64766203. The next prime is 64766291. The reversal of 64766223 is 32266746.

It is a happy number.

64766223 is a `hidden beast` number, since 647 + 6 + 6 + 2 + 2 + 3 = 666.

64766223 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 64766223 - 2⁹ = 64765711 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64766203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 10386 + ... + 15407.

Almost surely, 2^64766223 is an apocalyptic number.

64766223 is a deficient number, since it is larger than the sum of its proper divisors (35108145).

64766223 is a wasteful number, since it uses less digits than its factorization.

64766223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25836 (or 25827 counting only the distinct ones).

The product of its digits is 72576, while the sum is 36.

The square root of 64766223 is about 8047.7464547537. The cubic root of 64766223 is about 401.5899695350.

The spelling of 64766223 in words is "sixty-four million, seven hundred sixty-six thousand, two hundred twenty-three".