64031711 has 2 divisors, whose sum is σ = 64031712. Its totient is φ = 64031710.

The previous prime is 64031659. The next prime is 64031713. The reversal of 64031711 is 11713046.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-64031711 is a prime.

Together with 64031713, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64031713) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32015855 + 32015856.

It is an arithmetic number, because the mean of its divisors is an integer number (32015856).

Almost surely, 2^64031711 is an apocalyptic number.

64031711 is a deficient number, since it is larger than the sum of its proper divisors (1).

64031711 is an equidigital number, since it uses as much as digits as its factorization.

64031711 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 504, while the sum is 23.

The square root of 64031711 is about 8001.9816920560. The cubic root of 64031711 is about 400.0660536750.

Adding to 64031711 its reverse (11713046), we get a palindrome (75744757).

The spelling of 64031711 in words is "sixty-four million, thirty-one thousand, seven hundred eleven".