64868333 has 2 divisors, whose sum is σ = 64868334. Its totient is φ = 64868332.

The previous prime is 64868291. The next prime is 64868371. The reversal of 64868333 is 33386846.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 35307364 + 29560969 = 5942^2 + 5437^2 .

It is a cyclic number.

It is not a de Polignac number, because 64868333 - 2⁸ = 64868077 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64868383) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32434166 + 32434167.

It is an arithmetic number, because the mean of its divisors is an integer number (32434167).

Almost surely, 2^64868333 is an apocalyptic number.

It is an amenable number.

64868333 is a deficient number, since it is larger than the sum of its proper divisors (1).

64868333 is an equidigital number, since it uses as much as digits as its factorization.

64868333 is an evil number, because the sum of its binary digits is even.

The product of its digits is 248832, while the sum is 41.

The square root of 64868333 is about 8054.0879682308. The cubic root of 64868333 is about 401.8009067521.

The spelling of 64868333 in words is "sixty-four million, eight hundred sixty-eight thousand, three hundred thirty-three".