9923490 has 24 divisors (see below), whose sum is σ = 25801308. Its totient is φ = 2646240.

The previous prime is 9923483. The next prime is 9923509. The reversal of 9923490 is 943299.

It can be written as a sum of positive squares in 2 ways, for example, as 9903609 + 19881 = 3147^2 + 141^2 .

It is an Ulam number.

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 11 ways as a sum of consecutive naturals, for example, 55041 + ... + 55220.

Almost surely, 2^9923490 is an apocalyptic number.

9923490 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

9923490 is an abundant number, since it is smaller than the sum of its proper divisors (15877818).

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

9923490 is a wasteful number, since it uses less digits than its factorization.

9923490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110274 (or 110271 counting only the distinct ones).

The product of its (nonzero) digits is 17496, while the sum is 36.

The square root of 9923490 is about 3150.1571389377. The cubic root of 9923490 is about 214.8926090685.

The spelling of 9923490 in words is "nine million, nine hundred twenty-three thousand, four hundred ninety".