9890464 has 24 divisors (see below), whose sum is σ = 20618388. Its totient is φ = 4654080.

The previous prime is 9890443. The next prime is 9890467. The reversal of 9890464 is 4640989.

It can be written as a sum of positive squares in 2 ways, for example, as 8179600 + 1710864 = 2860^2 + 1308^2 .

It is not an unprimeable number, because it can be changed into a prime (9890467) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8547 + ... + 9634.

Almost surely, 2^9890464 is an apocalyptic number.

It is an amenable number.

9890464 is an abundant number, since it is smaller than the sum of its proper divisors (10727924).

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

9890464 is a wasteful number, since it uses less digits than its factorization.

9890464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18208 (or 18200 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 40.

The square root of 9890464 is about 3144.9108095461. The cubic root of 9890464 is about 214.6539520694.

The spelling of 9890464 in words is "nine million, eight hundred ninety thousand, four hundred sixty-four".