115963897 has 16 divisors (see below), whose sum is σ = 140313600. Its totient is φ = 93620880.

The previous prime is 115963879. The next prime is 115963909. The reversal of 115963897 is 798369511.

It is a cyclic number.

It is not a de Polignac number, because 115963897 - 2¹¹ = 115961849 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 115963897.

It is not an unprimeable number, because it can be changed into a prime (115961897) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21372 + ... + 26242.

It is an arithmetic number, because the mean of its divisors is an integer number (8769600).

Almost surely, 2^115963897 is an apocalyptic number.

It is an amenable number.

115963897 is a deficient number, since it is larger than the sum of its proper divisors (24349703).

115963897 is a wasteful number, since it uses less digits than its factorization.

115963897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5076.

The product of its digits is 408240, while the sum is 49.

The square root of 115963897 is about 10768.6534441405. The cubic root of 115963897 is about 487.6492947960.

It can be divided in two parts, 1159 and 63897, that added together give a palindrome (65056).

The spelling of 115963897 in words is "one hundred fifteen million, nine hundred sixty-three thousand, eight hundred ninety-seven".