2098397 has 4 divisors (see below), whose sum is σ = 2398176. Its totient is φ = 1798620.

The previous prime is 2098391. The next prime is 2098403. The reversal of 2098397 is 7938902.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 7938902 = 2 ⋅3969451.

It is an interprime number because it is at equal distance from previous prime (2098391) and next prime (2098403).

It is a cyclic number.

It is not a de Polignac number, because 2098397 - 2¹⁰ = 2097373 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2098397.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2098391) 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, 149879 + ... + 149892.

It is an arithmetic number, because the mean of its divisors is an integer number (599544).

2^2098397 is an apocalyptic number.

It is an amenable number.

2098397 is a deficient number, since it is larger than the sum of its proper divisors (299779).

2098397 is an equidigital number, since it uses as much as digits as its factorization.

2098397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 299778.

The product of its (nonzero) digits is 27216, while the sum is 38.

The square root of 2098397 is about 1448.5844814853. The cubic root of 2098397 is about 128.0253245791.

The spelling of 2098397 in words is "two million, ninety-eight thousand, three hundred ninety-seven".