2097399 has 4 divisors (see below), whose sum is σ = 2796536. Its totient is φ = 1398264.

The previous prime is 2097397. The next prime is 2097401. The reversal of 2097399 is 9937902.

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 (2097397) and next prime (2097401).

It is not a de Polignac number, because 2097399 - 2¹ = 2097397 is a prime.

It is a d-powerful number, because it can be written as 2²¹ + 0 + 9 + 7² + 3³ + 9² + 9² .

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2097397) 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, 349564 + ... + 349569.

It is an arithmetic number, because the mean of its divisors is an integer number (699134).

2^2097399 is an apocalyptic number.

2097399 is a deficient number, since it is larger than the sum of its proper divisors (699137).

2097399 is an equidigital number, since it uses as much as digits as its factorization.

2097399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 699136.

The product of its (nonzero) digits is 30618, while the sum is 39.

The square root of 2097399 is about 1448.2399663039. The cubic root of 2097399 is about 128.0050250306.

The spelling of 2097399 in words is "two million, ninety-seven thousand, three hundred ninety-nine".