9028990 has 16 divisors (see below), whose sum is σ = 17107920. Its totient is φ = 3421440.

The previous prime is 9028973. The next prime is 9028991. The reversal of 9028990 is 998209.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9028991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23571 + ... + 23950.

It is an arithmetic number, because the mean of its divisors is an integer number (1069245).

Almost surely, 2^9028990 is an apocalyptic number.

9028990 is a deficient number, since it is larger than the sum of its proper divisors (8078930).

9028990 is a wasteful number, since it uses less digits than its factorization.

9028990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47547.

The product of its (nonzero) digits is 11664, while the sum is 37.

The square root of 9028990 is about 3004.8277820867. The cubic root of 9028990 is about 208.2314823036.

The spelling of 9028990 in words is "nine million, twenty-eight thousand, nine hundred ninety".