64719311 has 2 divisors, whose sum is σ = 64719312. Its totient is φ = 64719310.

The previous prime is 64719299. The next prime is 64719331. The reversal of 64719311 is 11391746.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 64719311 - 2⁶ = 64719247 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64719331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32359655 + 32359656.

It is an arithmetic number, because the mean of its divisors is an integer number (32359656).

Almost surely, 2^64719311 is an apocalyptic number.

64719311 is a deficient number, since it is larger than the sum of its proper divisors (1).

64719311 is an equidigital number, since it uses as much as digits as its factorization.

64719311 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4536, while the sum is 32.

The square root of 64719311 is about 8044.8313220353. The cubic root of 64719311 is about 401.4929851387.

The spelling of 64719311 in words is "sixty-four million, seven hundred nineteen thousand, three hundred eleven".