9220990 has 8 divisors (see below), whose sum is σ = 16597800. Its totient is φ = 3688392.

The previous prime is 9220969. The next prime is 9221011. The reversal of 9220990 is 990229.

It is an interprime number because it is at equal distance from previous prime (9220969) and next prime (9221011).

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 461040 + ... + 461059.

It is an arithmetic number, because the mean of its divisors is an integer number (2074725).

Almost surely, 2^9220990 is an apocalyptic number.

9220990 is a deficient number, since it is larger than the sum of its proper divisors (7376810).

9220990 is a wasteful number, since it uses less digits than its factorization.

9220990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 922106.

The product of its (nonzero) digits is 2916, while the sum is 31.

The square root of 9220990 is about 3036.6083053301. The cubic root of 9220990 is about 209.6971446964.

The spelling of 9220990 in words is "nine million, two hundred twenty thousand, nine hundred ninety".