8999622 has 12 divisors (see below), whose sum is σ = 19499220. Its totient is φ = 2999868.

The previous prime is 8999609. The next prime is 8999651. The reversal of 8999622 is 2269998.

It is a super-2 number, since 2×8999622² = 161986392285768, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 249972 + ... + 250007.

It is an arithmetic number, because the mean of its divisors is an integer number (1624935).

Almost surely, 2^8999622 is an apocalyptic number.

8999622 is an abundant number, since it is smaller than the sum of its proper divisors (10499598).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8999622 is a wasteful number, since it uses less digits than its factorization.

8999622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 499987 (or 499984 counting only the distinct ones).

The product of its digits is 139968, while the sum is 45.

The square root of 8999622 is about 2999.9369993385. The cubic root of 8999622 is about 208.0054701471.

The spelling of 8999622 in words is "eight million, nine hundred ninety-nine thousand, six hundred twenty-two".