8622920 has 16 divisors (see below), whose sum is σ = 19401660. Its totient is φ = 3449152.

The previous prime is 8622883. The next prime is 8622923. The reversal of 8622920 is 292268.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 8444836 + 178084 = 2906^2 + 422^2 .

It is not an unprimeable number, because it can be changed into a prime (8622923) 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, 107747 + ... + 107826.

Almost surely, 2^8622920 is an apocalyptic number.

It is an amenable number.

8622920 is an abundant number, since it is smaller than the sum of its proper divisors (10778740).

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

8622920 is a wasteful number, since it uses less digits than its factorization.

8622920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215584 (or 215580 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 8622920 is about 2936.4808870483. The cubic root of 8622920 is about 205.0618096387.

The spelling of 8622920 in words is "eight million, six hundred twenty-two thousand, nine hundred twenty".