2090508623 has 4 divisors (see below), whose sum is σ = 2389152720. Its totient is φ = 1791864528.

The previous prime is 2090508577. The next prime is 2090508677. The reversal of 2090508623 is 3268050902.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3268050902 = 2 ⋅1634025451.

It is a cyclic number.

It is not a de Polignac number, because 2090508623 - 2¹⁸ = 2090246479 is a prime.

It is a super-2 number, since 2×2090508623² = 8740452605674712258, 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 (2090598623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 149322038 + ... + 149322051.

It is an arithmetic number, because the mean of its divisors is an integer number (597288180).

Almost surely, 2^2090508623 is an apocalyptic number.

2090508623 is a deficient number, since it is larger than the sum of its proper divisors (298644097).

2090508623 is an equidigital number, since it uses as much as digits as its factorization.

2090508623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 298644096.

The product of its (nonzero) digits is 25920, while the sum is 35.

The square root of 2090508623 is about 45722.0802566987. The cubic root of 2090508623 is about 1278.6469717702.

The spelling of 2090508623 in words is "two billion, ninety million, five hundred eight thousand, six hundred twenty-three".