890111445 has 16 divisors (see below), whose sum is σ = 1426721472. Its totient is φ = 473878400.

The previous prime is 890111429. The next prime is 890111447. The reversal of 890111445 is 544111098.

It is not a de Polignac number, because 890111445 - 2⁴ = 890111429 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (890111447) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44256 + ... + 61145.

It is an arithmetic number, because the mean of its divisors is an integer number (89170092).

Almost surely, 2^890111445 is an apocalyptic number.

It is an amenable number.

890111445 is a deficient number, since it is larger than the sum of its proper divisors (536610027).

890111445 is a wasteful number, since it uses less digits than its factorization.

890111445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105972.

The product of its (nonzero) digits is 5760, while the sum is 33.

The square root of 890111445 is about 29834.7355443282. The cubic root of 890111445 is about 961.9403193569.

The spelling of 890111445 in words is "eight hundred ninety million, one hundred eleven thousand, four hundred forty-five".