64005205 has 32 divisors (see below), whose sum is σ = 92067840. Its totient is φ = 42166080.

The previous prime is 64005197. The next prime is 64005239. The reversal of 64005205 is 50250046.

It is not a de Polignac number, because 64005205 - 2³ = 64005197 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 22704 + ... + 25366.

It is an arithmetic number, because the mean of its divisors is an integer number (2877120).

Almost surely, 2^64005205 is an apocalyptic number.

It is an amenable number.

64005205 is a deficient number, since it is larger than the sum of its proper divisors (28062635).

64005205 is a wasteful number, since it uses less digits than its factorization.

64005205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2721.

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 64005205 is about 8000.3253058860. The cubic root of 64005205 is about 400.0108434560.

The spelling of 64005205 in words is "sixty-four million, five thousand, two hundred five".