64799213 has 2 divisors, whose sum is σ = 64799214. Its totient is φ = 64799212.

The previous prime is 64799167. The next prime is 64799227. The reversal of 64799213 is 31299746.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 48622729 + 16176484 = 6973^2 + 4022^2 .

It is a cyclic number.

It is not a de Polignac number, because 64799213 - 2⁸ = 64798957 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64799243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32399606 + 32399607.

It is an arithmetic number, because the mean of its divisors is an integer number (32399607).

Almost surely, 2^64799213 is an apocalyptic number.

It is an amenable number.

64799213 is a deficient number, since it is larger than the sum of its proper divisors (1).

64799213 is an equidigital number, since it uses as much as digits as its factorization.

64799213 is an evil number, because the sum of its binary digits is even.

The product of its digits is 81648, while the sum is 41.

The square root of 64799213 is about 8049.7958359203. The cubic root of 64799213 is about 401.6581439818.

The spelling of 64799213 in words is "sixty-four million, seven hundred ninety-nine thousand, two hundred thirteen".