2090855 has 16 divisors (see below), whose sum is σ = 2845920. Its totient is φ = 1461888.

The previous prime is 2090849. The next prime is 2090863. The reversal of 2090855 is 5580902.

It is a cyclic number.

It is not a de Polignac number, because 2090855 - 2⁶ = 2090791 is a prime.

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, 389 + ... + 2081.

It is an arithmetic number, because the mean of its divisors is an integer number (177870).

2^2090855 is an apocalyptic number.

2090855 is a deficient number, since it is larger than the sum of its proper divisors (755065).

2090855 is a wasteful number, since it uses less digits than its factorization.

2090855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1730.

The product of its (nonzero) digits is 3600, while the sum is 29.

The square root of 2090855 is about 1445.9789071767. The cubic root of 2090855 is about 127.8717587670.

The spelling of 2090855 in words is "two million, ninety thousand, eight hundred fifty-five".