64464347 has 2 divisors, whose sum is σ = 64464348. Its totient is φ = 64464346.

The previous prime is 64464319. The next prime is 64464349. The reversal of 64464347 is 74346446.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 64464347 - 2²⁰ = 63415771 is a prime.

Together with 64464349, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 64464347.

It is not a weakly prime, because it can be changed into another prime (64464349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32232173 + 32232174.

It is an arithmetic number, because the mean of its divisors is an integer number (32232174).

Almost surely, 2^64464347 is an apocalyptic number.

64464347 is a deficient number, since it is larger than the sum of its proper divisors (1).

64464347 is an equidigital number, since it uses as much as digits as its factorization.

64464347 is an evil number, because the sum of its binary digits is even.

The product of its digits is 193536, while the sum is 38.

The square root of 64464347 is about 8028.9692364587. The cubic root of 64464347 is about 400.9650593619.

The spelling of 64464347 in words is "sixty-four million, four hundred sixty-four thousand, three hundred forty-seven".