10890239 has 2 divisors, whose sum is σ = 10890240. Its totient is φ = 10890238.

The previous prime is 10890221. The next prime is 10890241. The reversal of 10890239 is 93209801.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 10890239 - 2¹² = 10886143 is a prime.

Together with 10890241, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10890259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5445119 + 5445120.

It is an arithmetic number, because the mean of its divisors is an integer number (5445120).

Almost surely, 2^10890239 is an apocalyptic number.

10890239 is a deficient number, since it is larger than the sum of its proper divisors (1).

10890239 is an equidigital number, since it uses as much as digits as its factorization.

10890239 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3888, while the sum is 32.

The square root of 10890239 is about 3300.0362119225. The cubic root of 10890239 is about 221.6558189678.

The spelling of 10890239 in words is "ten million, eight hundred ninety thousand, two hundred thirty-nine".