115697 has 4 divisors (see below), whose sum is σ = 116736. Its totient is φ = 114660.

The previous prime is 115693. The next prime is 115727. The reversal of 115697 is 796511.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 796511 = 193 ⋅4127.

It is a cyclic number.

It is not a de Polignac number, because 115697 - 2² = 115693 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (115693) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 329 + ... + 582.

It is an arithmetic number, because the mean of its divisors is an integer number (29184).

2¹¹⁵⁶⁹⁷ is an apocalyptic number.

It is an amenable number.

115697 is a deficient number, since it is larger than the sum of its proper divisors (1039).

115697 is an equidigital number, since it uses as much as digits as its factorization.

115697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1038.

The product of its digits is 1890, while the sum is 29.

The square root of 115697 is about 340.1426171476. The cubic root of 115697 is about 48.7274890590.

The spelling of 115697 in words is "one hundred fifteen thousand, six hundred ninety-seven".