115903897 has 2 divisors, whose sum is σ = 115903898. Its totient is φ = 115903896.

The previous prime is 115903891. The next prime is 115903901. The reversal of 115903897 is 798309511.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 106069401 + 9834496 = 10299^2 + 3136^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-115903897 is a prime.

It is not a weakly prime, because it can be changed into another prime (115903891) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57951948 + 57951949.

It is an arithmetic number, because the mean of its divisors is an integer number (57951949).

Almost surely, 2^115903897 is an apocalyptic number.

It is an amenable number.

115903897 is a deficient number, since it is larger than the sum of its proper divisors (1).

115903897 is an equidigital number, since it uses as much as digits as its factorization.

115903897 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 68040, while the sum is 43.

The square root of 115903897 is about 10765.8672200617. The cubic root of 115903897 is about 487.5651766463.

The spelling of 115903897 in words is "one hundred fifteen million, nine hundred three thousand, eight hundred ninety-seven".