2098637 has 4 divisors (see below), whose sum is σ = 2101596. Its totient is φ = 2095680.

The previous prime is 2098609. The next prime is 2098639. The reversal of 2098637 is 7368902.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 7368902 = 2 ⋅3684451.

It can be written as a sum of positive squares in 2 ways, for example, as 1552516 + 546121 = 1246^2 + 739^2 .

It is a cyclic number.

It is not a de Polignac number, because 2098637 - 2⁶ = 2098573 is a prime.

It is a d-powerful number, because it can be written as 2⁷ + 0 + 9 + 8⁷ + 6⁴ + 3 + 7² .

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2098597 and 2098606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2098639) 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, 293 + ... + 2069.

It is an arithmetic number, because the mean of its divisors is an integer number (525399).

2^2098637 is an apocalyptic number.

It is an amenable number.

2098637 is a deficient number, since it is larger than the sum of its proper divisors (2959).

2098637 is a wasteful number, since it uses less digits than its factorization.

2098637 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2958.

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 2098637 is about 1448.6673186070. The cubic root of 2098637 is about 128.0302052740.

The spelling of 2098637 in words is "two million, ninety-eight thousand, six hundred thirty-seven".