64318465 has 12 divisors (see below), whose sum is σ = 80687124. Its totient is φ = 49215584.

The previous prime is 64318447. The next prime is 64318483. The reversal of 64318465 is 56481346.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (64318447) and next prime (64318483).

It can be written as a sum of positive squares in 2 ways, for example, as 33593616 + 30724849 = 5796^2 + 5543^2 .

It is not a de Polignac number, because 64318465 - 2⁷ = 64318337 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9514 + ... + 14803.

It is an arithmetic number, because the mean of its divisors is an integer number (6723927).

Almost surely, 2^64318465 is an apocalyptic number.

It is an amenable number.

64318465 is a deficient number, since it is larger than the sum of its proper divisors (16368659).

64318465 is a wasteful number, since it uses less digits than its factorization.

64318465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24368 (or 24345 counting only the distinct ones).

The product of its digits is 69120, while the sum is 37.

The square root of 64318465 is about 8019.8793631825. The cubic root of 64318465 is about 400.6623713052.

The spelling of 64318465 in words is "sixty-four million, three hundred eighteen thousand, four hundred sixty-five".