10998564 has 24 divisors (see below), whose sum is σ = 26210688. Its totient is φ = 3588000.

The previous prime is 10998563. The next prime is 10998593. The reversal of 10998564 is 46589901.

10998564 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (10998563) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9187 + ... + 10314.

It is an arithmetic number, because the mean of its divisors is an integer number (1092112).

Almost surely, 2^10998564 is an apocalyptic number.

It is an amenable number.

10998564 is an abundant number, since it is smaller than the sum of its proper divisors (15212124).

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

10998564 is a wasteful number, since it uses less digits than its factorization.

10998564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19555 (or 19553 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 42.

The square root of 10998564 is about 3316.4082981442. The cubic root of 10998564 is about 222.3883309527.

The spelling of 10998564 in words is "ten million, nine hundred ninety-eight thousand, five hundred sixty-four".