64464887 has 2 divisors, whose sum is σ = 64464888. Its totient is φ = 64464886.

The previous prime is 64464859. The next prime is 64464899. The reversal of 64464887 is 78846446.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-64464887 is a 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 (64464847) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32232443 + 32232444.

It is an arithmetic number, because the mean of its divisors is an integer number (32232444).

Almost surely, 2^64464887 is an apocalyptic number.

64464887 is a deficient number, since it is larger than the sum of its proper divisors (1).

64464887 is an equidigital number, since it uses as much as digits as its factorization.

64464887 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1032192, while the sum is 47.

The square root of 64464887 is about 8029.0028646153. The cubic root of 64464887 is about 400.9661789499.

The spelling of 64464887 in words is "sixty-four million, four hundred sixty-four thousand, eight hundred eighty-seven".