64335405 has 16 divisors (see below), whose sum is σ = 103137984. Its totient is φ = 34245120.

The previous prime is 64335391. The next prime is 64335407. The reversal of 64335405 is 50453346.

It is not a de Polignac number, because 64335405 - 2⁴ = 64335389 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64335407) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4285 + ... + 12125.

It is an arithmetic number, because the mean of its divisors is an integer number (6446124).

Almost surely, 2^64335405 is an apocalyptic number.

It is an amenable number.

64335405 is a deficient number, since it is larger than the sum of its proper divisors (38802579).

64335405 is a wasteful number, since it uses less digits than its factorization.

64335405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8396.

The product of its (nonzero) digits is 21600, while the sum is 30.

The square root of 64335405 is about 8020.9354192638. The cubic root of 64335405 is about 400.6975432930.

The spelling of 64335405 in words is "sixty-four million, three hundred thirty-five thousand, four hundred five".