64385369 has 2 divisors, whose sum is σ = 64385370. Its totient is φ = 64385368.

The previous prime is 64385329. The next prime is 64385371. The reversal of 64385369 is 96358346.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 37210000 + 27175369 = 6100^2 + 5213^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-64385369 is a prime.

It is a super-2 number, since 2×64385369² = 8290951482532322, which contains 22 as substring.

Together with 64385371, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (64385329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32192684 + 32192685.

It is an arithmetic number, because the mean of its divisors is an integer number (32192685).

Almost surely, 2^64385369 is an apocalyptic number.

It is an amenable number.

64385369 is a deficient number, since it is larger than the sum of its proper divisors (1).

64385369 is an equidigital number, since it uses as much as digits as its factorization.

64385369 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 466560, while the sum is 44.

The square root of 64385369 is about 8024.0494141051. The cubic root of 64385369 is about 400.8012460237.

The spelling of 64385369 in words is "sixty-four million, three hundred eighty-five thousand, three hundred sixty-nine".