64767223 has 2 divisors, whose sum is σ = 64767224. Its totient is φ = 64767222.

The previous prime is 64767217. The next prime is 64767233. The reversal of 64767223 is 32276746.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 64767223 - 2⁹ = 64766711 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64767233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32383611 + 32383612.

It is an arithmetic number, because the mean of its divisors is an integer number (32383612).

Almost surely, 2^64767223 is an apocalyptic number.

64767223 is a deficient number, since it is larger than the sum of its proper divisors (1).

64767223 is an equidigital number, since it uses as much as digits as its factorization.

64767223 is an evil number, because the sum of its binary digits is even.

The product of its digits is 84672, while the sum is 37.

The square root of 64767223 is about 8047.8085837077. The cubic root of 64767223 is about 401.5920363938.

The spelling of 64767223 in words is "sixty-four million, seven hundred sixty-seven thousand, two hundred twenty-three".