2097813 has 4 divisors (see below), whose sum is σ = 2797088. Its totient is φ = 1398540.

The previous prime is 2097803. The next prime is 2097829. The reversal of 2097813 is 3187902.

It is a happy number.

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.

It is not a de Polignac number, because 2097813 - 2¹⁰ = 2096789 is a prime.

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 (2097803) 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, 349633 + ... + 349638.

It is an arithmetic number, because the mean of its divisors is an integer number (699272).

2^2097813 is an apocalyptic number.

It is an amenable number.

2097813 is a deficient number, since it is larger than the sum of its proper divisors (699275).

2097813 is an equidigital number, since it uses as much as digits as its factorization.

2097813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 699274.

The product of its (nonzero) digits is 3024, while the sum is 30.

The square root of 2097813 is about 1448.3828913654. The cubic root of 2097813 is about 128.0134466668.

The spelling of 2097813 in words is "two million, ninety-seven thousand, eight hundred thirteen".