2818623 has 16 divisors (see below), whose sum is σ = 3927680. Its totient is φ = 1796256.

The previous prime is 2818619. The next prime is 2818639. The reversal of 2818623 is 3268182.

2818623 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2818623 - 2² = 2818619 is a prime.

It is a super-2 number, since 2×2818623² = 15889271232258, which contains 22 as substring.

It is a Duffinian number.

2818623 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2818643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7248 + ... + 7626.

It is an arithmetic number, because the mean of its divisors is an integer number (245480).

2^2818623 is an apocalyptic number.

2818623 is a deficient number, since it is larger than the sum of its proper divisors (1109057).

2818623 is a wasteful number, since it uses less digits than its factorization.

2818623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 486.

The product of its digits is 4608, while the sum is 30.

The square root of 2818623 is about 1678.8755165288. The cubic root of 2818623 is about 141.2577649946.

The spelling of 2818623 in words is "two million, eight hundred eighteen thousand, six hundred twenty-three".