2090669 has 4 divisors (see below), whose sum is σ = 2389344. Its totient is φ = 1791996.

The previous prime is 2090651. The next prime is 2090681. The reversal of 2090669 is 9660902.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2090669 - 2¹² = 2086573 is a prime.

It is a super-2 number, since 2×2090669² = 8741793735122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2090689) 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, 149327 + ... + 149340.

It is an arithmetic number, because the mean of its divisors is an integer number (597336).

2^2090669 is an apocalyptic number.

It is an amenable number.

2090669 is a deficient number, since it is larger than the sum of its proper divisors (298675).

2090669 is an equidigital number, since it uses as much as digits as its factorization.

2090669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 298674.

The product of its (nonzero) digits is 5832, while the sum is 32.

The square root of 2090669 is about 1445.9145894554. The cubic root of 2090669 is about 127.8679668809.

The spelling of 2090669 in words is "two million, ninety thousand, six hundred sixty-nine".