2397445 has 4 divisors (see below), whose sum is σ = 2876940. Its totient is φ = 1917952.

The previous prime is 2397403. The next prime is 2397449. The reversal of 2397445 is 5447932.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1846881 + 550564 = 1359^2 + 742^2 .

It is a cyclic number.

It is not a de Polignac number, because 2397445 - 2¹¹ = 2395397 is a prime.

2397445 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 2397445.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2397449) 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, 239740 + ... + 239749.

It is an arithmetic number, because the mean of its divisors is an integer number (719235).

2^2397445 is an apocalyptic number.

It is an amenable number.

2397445 is a deficient number, since it is larger than the sum of its proper divisors (479495).

2397445 is an equidigital number, since it uses as much as digits as its factorization.

2397445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 479494.

The product of its digits is 30240, while the sum is 34.

The square root of 2397445 is about 1548.3684961920. The cubic root of 2397445 is about 133.8390620025.

The spelling of 2397445 in words is "two million, three hundred ninety-seven thousand, four hundred forty-five".