64514893 has 2 divisors, whose sum is σ = 64514894. Its totient is φ = 64514892.

The previous prime is 64514867. The next prime is 64514897. The reversal of 64514893 is 39841546.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 64352484 + 162409 = 8022^2 + 403^2 .

It is a cyclic number.

It is not a de Polignac number, because 64514893 - 2⁹ = 64514381 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64514897) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32257446 + 32257447.

It is an arithmetic number, because the mean of its divisors is an integer number (32257447).

Almost surely, 2^64514893 is an apocalyptic number.

It is an amenable number.

64514893 is a deficient number, since it is larger than the sum of its proper divisors (1).

64514893 is an equidigital number, since it uses as much as digits as its factorization.

64514893 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 103680, while the sum is 40.

The square root of 64514893 is about 8032.1163462689. The cubic root of 64514893 is about 401.0698298592.

The spelling of 64514893 in words is "sixty-four million, five hundred fourteen thousand, eight hundred ninety-three".