64005799 has 32 divisors (see below), whose sum is σ = 80668224. Its totient is φ = 49889280.

The previous prime is 64005779. The next prime is 64005817. The reversal of 64005799 is 99750046.

It is a cyclic number.

It is not a de Polignac number, because 64005799 - 2¹³ = 63997607 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64005709) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 274587 + ... + 274819.

It is an arithmetic number, because the mean of its divisors is an integer number (2520882).

Almost surely, 2^64005799 is an apocalyptic number.

64005799 is a deficient number, since it is larger than the sum of its proper divisors (16662425).

64005799 is a wasteful number, since it uses less digits than its factorization.

64005799 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 387.

The product of its (nonzero) digits is 68040, while the sum is 40.

The square root of 64005799 is about 8000.3624292903. The cubic root of 64005799 is about 400.0120808851.

The spelling of 64005799 in words is "sixty-four million, five thousand, seven hundred ninety-nine".