64418771 has 2 divisors, whose sum is σ = 64418772. Its totient is φ = 64418770.

The previous prime is 64418723. The next prime is 64418779. The reversal of 64418771 is 17781446.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 64418771 - 2¹⁰ = 64417747 is a prime.

It is not a weakly prime, because it can be changed into another prime (64418779) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32209385 + 32209386.

It is an arithmetic number, because the mean of its divisors is an integer number (32209386).

Almost surely, 2^64418771 is an apocalyptic number.

64418771 is a deficient number, since it is larger than the sum of its proper divisors (1).

64418771 is an equidigital number, since it uses as much as digits as its factorization.

64418771 is an evil number, because the sum of its binary digits is even.

The product of its digits is 37632, while the sum is 38.

The square root of 64418771 is about 8026.1305122705. The cubic root of 64418771 is about 400.8705435935.

The spelling of 64418771 in words is "sixty-four million, four hundred eighteen thousand, seven hundred seventy-one".