10890023 has 2 divisors, whose sum is σ = 10890024. Its totient is φ = 10890022.

The previous prime is 10889987. The next prime is 10890029. The reversal of 10890023 is 32009801.

10890023 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10890023 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10890029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5445011 + 5445012.

It is an arithmetic number, because the mean of its divisors is an integer number (5445012).

Almost surely, 2^10890023 is an apocalyptic number.

10890023 is a deficient number, since it is larger than the sum of its proper divisors (1).

10890023 is an equidigital number, since it uses as much as digits as its factorization.

10890023 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 10890023 is about 3300.0034848466. The cubic root of 10890023 is about 221.6543534972.

Subtracting from 10890023 its sum of digits (23), we obtain a square (10890000 = 3300²).

Adding to 10890023 its reverse (32009801), we get a palindrome (42899824).

The spelling of 10890023 in words is "ten million, eight hundred ninety thousand, twenty-three".