2297939 has 4 divisors (see below), whose sum is σ = 2626224. Its totient is φ = 1969656.

The previous prime is 2297923. The next prime is 2297951. The reversal of 2297939 is 9397922.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9397922 = 2 ⋅4698961.

It is a cyclic number.

It is not a de Polignac number, because 2297939 - 2⁴ = 2297923 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2297896 and 2297905.

It is not an unprimeable number, because it can be changed into a prime (2297909) 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, 164132 + ... + 164145.

It is an arithmetic number, because the mean of its divisors is an integer number (656556).

2^2297939 is an apocalyptic number.

2297939 is a deficient number, since it is larger than the sum of its proper divisors (328285).

2297939 is an equidigital number, since it uses as much as digits as its factorization.

2297939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 328284.

The product of its digits is 61236, while the sum is 41.

The square root of 2297939 is about 1515.8954449434. The cubic root of 2297939 is about 131.9611723878.

The spelling of 2297939 in words is "two million, two hundred ninety-seven thousand, nine hundred thirty-nine".