2098623 has 4 divisors (see below), whose sum is σ = 2798168. Its totient is φ = 1399080.

The previous prime is 2098609. The next prime is 2098639. The reversal of 2098623 is 3268902.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 2098623 - 2⁶ = 2098559 is a prime.

It is a super-2 number, since 2×2098623² = 8808436992258, which contains 22 as substring.

It is a D-number.

It is a Duffinian number.

2098623 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2098673) 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, 349768 + ... + 349773.

It is an arithmetic number, because the mean of its divisors is an integer number (699542).

2^2098623 is an apocalyptic number.

2098623 is a deficient number, since it is larger than the sum of its proper divisors (699545).

2098623 is an equidigital number, since it uses as much as digits as its factorization.

2098623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 699544.

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 2098623 is about 1448.6624865717. The cubic root of 2098623 is about 128.0299205770.

The spelling of 2098623 in words is "two million, ninety-eight thousand, six hundred twenty-three".