2098993 has 4 divisors (see below), whose sum is σ = 2260468. Its totient is φ = 1937520.

The previous prime is 2098981. The next prime is 2099017. The reversal of 2098993 is 3998902.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 388129 + 1710864 = 623^2 + 1308^2 .

It is not a de Polignac number, because 2098993 - 2⁵ = 2098961 is a prime.

It is a super-2 number, since 2×2098993² = 8811543228098, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2098903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 80718 + ... + 80743.

It is an arithmetic number, because the mean of its divisors is an integer number (565117).

2^2098993 is an apocalyptic number.

It is an amenable number.

2098993 is a deficient number, since it is larger than the sum of its proper divisors (161475).

2098993 is a wasteful number, since it uses less digits than its factorization.

2098993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161474.

The product of its (nonzero) digits is 34992, while the sum is 40.

The square root of 2098993 is about 1448.7901849474. The cubic root of 2098993 is about 128.0374442861.

It can be divided in two parts, 209899 and 3, that added together give a palindrome (209902).

The spelling of 2098993 in words is "two million, ninety-eight thousand, nine hundred ninety-three".