10989723 has 4 divisors (see below), whose sum is σ = 14652968. Its totient is φ = 7326480.

The previous prime is 10989689. The next prime is 10989731. The reversal of 10989723 is 32798901.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 10989723 - 2⁶ = 10989659 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10989773) by changing a digit.

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, 1831618 + ... + 1831623.

It is an arithmetic number, because the mean of its divisors is an integer number (3663242).

Almost surely, 2^10989723 is an apocalyptic number.

10989723 is a deficient number, since it is larger than the sum of its proper divisors (3663245).

10989723 is an equidigital number, since it uses as much as digits as its factorization.

10989723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3663244.

The product of its (nonzero) digits is 27216, while the sum is 39.

The square root of 10989723 is about 3315.0751122712. The cubic root of 10989723 is about 222.3287273450.

The spelling of 10989723 in words is "ten million, nine hundred eighty-nine thousand, seven hundred twenty-three".