2090866 has 8 divisors (see below), whose sum is σ = 3179484. Its totient is φ = 1031040.

The previous prime is 2090863. The next prime is 2090873. The reversal of 2090866 is 6680902.

It can be written as a sum of positive squares in 2 ways, for example, as 1901641 + 189225 = 1379^2 + 435^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (2090863) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7015 + ... + 7306.

2^2090866 is an apocalyptic number.

2090866 is a deficient number, since it is larger than the sum of its proper divisors (1088618).

2090866 is a wasteful number, since it uses less digits than its factorization.

2090866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14396.

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 2090866 is about 1445.9827108233. The cubic root of 2090866 is about 127.8719830113.

The spelling of 2090866 in words is "two million, ninety thousand, eight hundred sixty-six".