2398397 has 4 divisors (see below), whose sum is σ = 2401596. Its totient is φ = 2395200.

The previous prime is 2398391. The next prime is 2398423. The reversal of 2398397 is 7938932.

2398397 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 23716 + 2374681 = 154^2 + 1541^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2398397 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2398391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 203 + ... + 2199.

It is an arithmetic number, because the mean of its divisors is an integer number (600399).

2^2398397 is an apocalyptic number.

It is an amenable number.

2398397 is a deficient number, since it is larger than the sum of its proper divisors (3199).

2398397 is a wasteful number, since it uses less digits than its factorization.

2398397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3198.

The product of its digits is 81648, while the sum is 41.

The square root of 2398397 is about 1548.6758860394. The cubic root of 2398397 is about 133.8567750158.

The spelling of 2398397 in words is "two million, three hundred ninety-eight thousand, three hundred ninety-seven".