9000890 has 8 divisors (see below), whose sum is σ = 16201620. Its totient is φ = 3600352.

The previous prime is 9000877. The next prime is 9000899. The reversal of 9000890 is 980009.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 8994001 + 6889 = 2999^2 + 83^2 .

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

It is not an unprimeable number, because it can be changed into a prime (9000899) 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 3 ways as a sum of consecutive naturals, for example, 450035 + ... + 450054.

Almost surely, 2^9000890 is an apocalyptic number.

9000890 is a deficient number, since it is larger than the sum of its proper divisors (7200730).

9000890 is a wasteful number, since it uses less digits than its factorization.

9000890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 900096.

The product of its (nonzero) digits is 648, while the sum is 26.

The square root of 9000890 is about 3000.1483296664. The cubic root of 9000890 is about 208.0152386518.

Adding to 9000890 its reverse (980009), we get a palindrome (9980899).

The spelling of 9000890 in words is "nine million, eight hundred ninety", and thus it is an aban number.