2098723 has 4 divisors (see below), whose sum is σ = 2289528. Its totient is φ = 1907920.

The previous prime is 2098717. The next prime is 2098729. The reversal of 2098723 is 3278902.

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

It is an interprime number because it is at equal distance from previous prime (2098717) and next prime (2098729).

It is a cyclic number.

It is not a de Polignac number, because 2098723 - 2⁹ = 2098211 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a d-powerful number, because it can be written as 2²⁰ + 0 + 9³ + 8² + 7² + 2²⁰ + 3⁶ .

It is a Duffinian number.

2098723 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2098729) 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, 95386 + ... + 95407.

It is an arithmetic number, because the mean of its divisors is an integer number (572382).

2^2098723 is an apocalyptic number.

2098723 is a deficient number, since it is larger than the sum of its proper divisors (190805).

2098723 is a wasteful number, since it uses less digits than its factorization.

2098723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190804.

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 2098723 is about 1448.6970007562. The cubic root of 2098723 is about 128.0319540991.

The spelling of 2098723 in words is "two million, ninety-eight thousand, seven hundred twenty-three".