2018623 has 2 divisors, whose sum is σ = 2018624. Its totient is φ = 2018622.

The previous prime is 2018593. The next prime is 2018629. The reversal of 2018623 is 3268102.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2018623 - 2⁵ = 2018591 is a prime.

It is a super-2 number, since 2×2018623² = 8149677632258, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2018594 and 2018603.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2018629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1009311 + 1009312.

It is an arithmetic number, because the mean of its divisors is an integer number (1009312).

2^2018623 is an apocalyptic number.

2018623 is a deficient number, since it is larger than the sum of its proper divisors (1).

2018623 is an equidigital number, since it uses as much as digits as its factorization.

2018623 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 2018623 is about 1420.7825308611. The cubic root of 2018623 is about 126.3819559445.

The spelling of 2018623 in words is "two million, eighteen thousand, six hundred twenty-three".