64845535 has 16 divisors (see below), whose sum is σ = 79706880. Its totient is φ = 50630400.

The previous prime is 64845509. The next prime is 64845541. The reversal of 64845535 is 53554846.

It is not a de Polignac number, because 64845535 - 2⁵ = 64845503 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35986 + ... + 37744.

It is an arithmetic number, because the mean of its divisors is an integer number (4981680).

Almost surely, 2^64845535 is an apocalyptic number.

64845535 is a deficient number, since it is larger than the sum of its proper divisors (14861345).

64845535 is a wasteful number, since it uses less digits than its factorization.

64845535 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1938.

The product of its digits is 288000, while the sum is 40.

The square root of 64845535 is about 8052.6725377355. The cubic root of 64845535 is about 401.7538302101.

The spelling of 64845535 in words is "sixty-four million, eight hundred forty-five thousand, five hundred thirty-five".