2397697 has 4 divisors (see below), whose sum is σ = 2538756. Its totient is φ = 2256640.

The previous prime is 2397683. The next prime is 2397713. The reversal of 2397697 is 7967932.

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 678976 + 1718721 = 824^2 + 1311^2 .

It is a cyclic number.

It is not a de Polignac number, because 2397697 - 2⁷ = 2397569 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2397617) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 70504 + ... + 70537.

It is an arithmetic number, because the mean of its divisors is an integer number (634689).

2^2397697 is an apocalyptic number.

It is an amenable number.

2397697 is a deficient number, since it is larger than the sum of its proper divisors (141059).

2397697 is a wasteful number, since it uses less digits than its factorization.

2397697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141058.

The product of its digits is 142884, while the sum is 43.

The square root of 2397697 is about 1548.4498700313. The cubic root of 2397697 is about 133.8437511976.

The spelling of 2397697 in words is "two million, three hundred ninety-seven thousand, six hundred ninety-seven".