9903290 has 8 divisors (see below), whose sum is σ = 17825940. Its totient is φ = 3961312.

The previous prime is 9903281. The next prime is 9903307. The reversal of 9903290 is 923099.

It can be written as a sum of positive squares in 2 ways, for example, as 9690769 + 212521 = 3113^2 + 461^2 .

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

It is an unprimeable number.

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, 495155 + ... + 495174.

Almost surely, 2^9903290 is an apocalyptic number.

9903290 is a deficient number, since it is larger than the sum of its proper divisors (7922650).

9903290 is a wasteful number, since it uses less digits than its factorization.

9903290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 990336.

The product of its (nonzero) digits is 4374, while the sum is 32.

The square root of 9903290 is about 3146.9493164015. The cubic root of 9903290 is about 214.7467000721.

The spelling of 9903290 in words is "nine million, nine hundred three thousand, two hundred ninety".