64304893 has 2 divisors, whose sum is σ = 64304894. Its totient is φ = 64304892.

The previous prime is 64304843. The next prime is 64304899. The reversal of 64304893 is 39840346.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 63568729 + 736164 = 7973^2 + 858^2 .

It is a cyclic number.

It is not a de Polignac number, because 64304893 - 2⁹ = 64304381 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64304899) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32152446 + 32152447.

It is an arithmetic number, because the mean of its divisors is an integer number (32152447).

Almost surely, 2^64304893 is an apocalyptic number.

It is an amenable number.

64304893 is a deficient number, since it is larger than the sum of its proper divisors (1).

64304893 is an equidigital number, since it uses as much as digits as its factorization.

64304893 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 62208, while the sum is 37.

The square root of 64304893 is about 8019.0331711497. The cubic root of 64304893 is about 400.6341877334.

The spelling of 64304893 in words is "sixty-four million, three hundred four thousand, eight hundred ninety-three".