10890215 has 16 divisors (see below), whose sum is σ = 15301440. Its totient is φ = 7284480.

The previous prime is 10890199. The next prime is 10890221. The reversal of 10890215 is 51209801.

It is a happy number.

It is not a de Polignac number, because 10890215 - 2⁴ = 10890199 is a prime.

It is a super-3 number, since 3×10890215³ (a number of 22 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2360 + ... + 5229.

It is an arithmetic number, because the mean of its divisors is an integer number (956340).

Almost surely, 2^10890215 is an apocalyptic number.

10890215 is a deficient number, since it is larger than the sum of its proper divisors (4411225).

10890215 is an equidigital number, since it uses as much as digits as its factorization.

10890215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7642.

The product of its (nonzero) digits is 720, while the sum is 26.

The square root of 10890215 is about 3300.0325755968. The cubic root of 10890215 is about 221.6556561387.

The spelling of 10890215 in words is "ten million, eight hundred ninety thousand, two hundred fifteen".