8999069 has 4 divisors (see below), whose sum is σ = 9528444. Its totient is φ = 8469696.

The previous prime is 8999059. The next prime is 8999087. The reversal of 8999069 is 9609998.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5712100 + 3286969 = 2390^2 + 1813^2 .

It is a cyclic number.

It is not a de Polignac number, because 8999069 - 2⁸ = 8998813 is a prime.

It is a super-2 number, since 2×8999069² = 161966485733522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8999009) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 264662 + ... + 264695.

It is an arithmetic number, because the mean of its divisors is an integer number (2382111).

Almost surely, 2^8999069 is an apocalyptic number.

It is an amenable number.

8999069 is a deficient number, since it is larger than the sum of its proper divisors (529375).

8999069 is a wasteful number, since it uses less digits than its factorization.

8999069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 529374.

The product of its (nonzero) digits is 314928, while the sum is 50.

The square root of 8999069 is about 2999.8448293203. The cubic root of 8999069 is about 208.0012096207.

The spelling of 8999069 in words is "eight million, nine hundred ninety-nine thousand, sixty-nine".