2397681897 has 32 divisors (see below), whose sum is σ = 3602097408. Its totient is φ = 1407580416.

The previous prime is 2397681889. The next prime is 2397681911. The reversal of 2397681897 is 7981867932.

It is not a de Polignac number, because 2397681897 - 2³ = 2397681889 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2397681897.

It is not an unprimeable number, because it can be changed into a prime (2397681817) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 352743 + ... + 359475.

It is an arithmetic number, because the mean of its divisors is an integer number (112565544).

Almost surely, 2^2397681897 is an apocalyptic number.

It is an amenable number.

2397681897 is a deficient number, since it is larger than the sum of its proper divisors (1204415511).

2397681897 is a wasteful number, since it uses less digits than its factorization.

2397681897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7169.

The product of its digits is 9144576, while the sum is 60.

The square root of 2397681897 is about 48966.1301003050. The cubic root of 2397681897 is about 1338.4347017148.

The spelling of 2397681897 in words is "two billion, three hundred ninety-seven million, six hundred eighty-one thousand, eight hundred ninety-seven".