9890454 has 24 divisors (see below), whose sum is σ = 23011128. Its totient is φ = 2825760.

The previous prime is 9890443. The next prime is 9890467. The reversal of 9890454 is 4540989.

It is a super-2 number, since 2×9890454² = 195642160652232, which contains 22 as substring.

It is a congruent 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, 16527 + ... + 17114.

It is an arithmetic number, because the mean of its divisors is an integer number (958797).

Almost surely, 2^9890454 is an apocalyptic number.

9890454 is an abundant number, since it is smaller than the sum of its proper divisors (13120674).

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

9890454 is a wasteful number, since it uses less digits than its factorization.

9890454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33660 (or 33653 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 39.

The square root of 9890454 is about 3144.9092196755. The cubic root of 9890454 is about 214.6538797256.

The spelling of 9890454 in words is "nine million, eight hundred ninety thousand, four hundred fifty-four".