64844465 has 8 divisors (see below), whose sum is σ = 88929600. Its totient is φ = 44464752.

The previous prime is 64844459. The next prime is 64844531. The reversal of 64844465 is 56444846.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 64844465 - 2⁴ = 64844449 is a prime.

It is a super-2 number, since 2×64844465² = 8409609282272450, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 926315 + ... + 926384.

It is an arithmetic number, because the mean of its divisors is an integer number (11116200).

Almost surely, 2^64844465 is an apocalyptic number.

It is an amenable number.

64844465 is a deficient number, since it is larger than the sum of its proper divisors (24085135).

64844465 is a wasteful number, since it uses less digits than its factorization.

64844465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1852711.

The product of its digits is 368640, while the sum is 41.

The square root of 64844465 is about 8052.6060998909. The cubic root of 64844465 is about 401.7516204514.

The spelling of 64844465 in words is "sixty-four million, eight hundred forty-four thousand, four hundred sixty-five".