8999745 has 8 divisors (see below), whose sum is σ = 14399616. Its totient is φ = 4799856.

The previous prime is 8999741. The next prime is 8999761. The reversal of 8999745 is 5479998.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 8999745 - 2² = 8999741 is a prime.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (8999741) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 299977 + ... + 300006.

It is an arithmetic number, because the mean of its divisors is an integer number (1799952).

Almost surely, 2^8999745 is an apocalyptic number.

It is an amenable number.

8999745 is a deficient number, since it is larger than the sum of its proper divisors (5399871).

8999745 is a wasteful number, since it uses less digits than its factorization.

8999745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 599991.

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

The square root of 8999745 is about 2999.9574996990. The cubic root of 8999745 is about 208.0064177630.

The spelling of 8999745 in words is "eight million, nine hundred ninety-nine thousand, seven hundred forty-five".