64568233 has 2 divisors, whose sum is σ = 64568234. Its totient is φ = 64568232.

The previous prime is 64568209. The next prime is 64568263. The reversal of 64568233 is 33286546.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 52374169 + 12194064 = 7237^2 + 3492^2 .

It is a cyclic number.

It is not a de Polignac number, because 64568233 - 2⁹ = 64567721 is a prime.

It is equal to p_3816676 and since 64568233 and 3816676 have the same sum of digits, it is a Honaker prime.

It is a junction number, because it is equal to n+sod(n) for n = 64568192 and 64568201.

It is not a weakly prime, because it can be changed into another prime (64568263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32284116 + 32284117.

It is an arithmetic number, because the mean of its divisors is an integer number (32284117).

Almost surely, 2^64568233 is an apocalyptic number.

It is an amenable number.

64568233 is a deficient number, since it is larger than the sum of its proper divisors (1).

64568233 is an equidigital number, since it uses as much as digits as its factorization.

64568233 is an evil number, because the sum of its binary digits is even.

The product of its digits is 103680, while the sum is 37.

The square root of 64568233 is about 8035.4360802635. The cubic root of 64568233 is about 401.1803323629.

The spelling of 64568233 in words is "sixty-four million, five hundred sixty-eight thousand, two hundred thirty-three".