8745999 has 16 divisors (see below), whose sum is σ = 12134400. Its totient is φ = 5597280.

The previous prime is 8745991. The next prime is 8746009. The reversal of 8745999 is 9995478.

It is a happy number.

It is not a de Polignac number, because 8745999 - 2³ = 8745991 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8745991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14302 + ... + 14900.

It is an arithmetic number, because the mean of its divisors is an integer number (758400).

Almost surely, 2^8745999 is an apocalyptic number.

8745999 is a deficient number, since it is larger than the sum of its proper divisors (3388401).

8745999 is a wasteful number, since it uses less digits than its factorization.

8745999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 790.

The product of its digits is 816480, while the sum is 51.

The square root of 8745999 is about 2957.3635217876. The cubic root of 8745999 is about 206.0328520830.

The spelling of 8745999 in words is "eight million, seven hundred forty-five thousand, nine hundred ninety-nine".