2397997 has 8 divisors (see below), whose sum is σ = 2782016. Its totient is φ = 2024352.

The previous prime is 2397991. The next prime is 2398001. The reversal of 2397997 is 7997932.

2397997 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2397997 - 2⁷ = 2397869 is a prime.

It is a super-2 number, since 2×2397997² = 11500779224018, which contains 22 as substring.

It is a Duffinian number.

It is a plaindrome in base 8.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2397991) 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 7 ways as a sum of consecutive naturals, for example, 2088 + ... + 3025.

It is an arithmetic number, because the mean of its divisors is an integer number (347752).

2^2397997 is an apocalyptic number.

It is an amenable number.

2397997 is a deficient number, since it is larger than the sum of its proper divisors (384019).

2397997 is an equidigital number, since it uses as much as digits as its factorization.

2397997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5187.

The product of its digits is 214326, while the sum is 46.

The square root of 2397997 is about 1548.5467380741. The cubic root of 2397997 is about 133.8493331443.

The spelling of 2397997 in words is "two million, three hundred ninety-seven thousand, nine hundred ninety-seven".