2090623 has 2 divisors, whose sum is σ = 2090624. Its totient is φ = 2090622.

The previous prime is 2090603. The next prime is 2090633. The reversal of 2090623 is 3260902.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2090623 - 2⁹ = 2090111 is a prime.

It is an Ulam number.

2090623 is a lucky number.

It is a zygodrome in base 2.

It is a junction number, because it is equal to n+sod(n) for n = 2090594 and 2090603.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2090603) 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 as a sum of consecutive naturals, namely, 1045311 + 1045312.

It is an arithmetic number, because the mean of its divisors is an integer number (1045312).

2^2090623 is an apocalyptic number.

2090623 is a deficient number, since it is larger than the sum of its proper divisors (1).

2090623 is an equidigital number, since it uses as much as digits as its factorization.

2090623 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648, while the sum is 22.

The square root of 2090623 is about 1445.8986824809. The cubic root of 2090623 is about 127.8670290679.

The spelling of 2090623 in words is "two million, ninety thousand, six hundred twenty-three".