115699823 has 4 divisors (see below), whose sum is σ = 115824240. Its totient is φ = 115575408.

The previous prime is 115699819. The next prime is 115699889. The reversal of 115699823 is 328996511.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 328996511 = 2243 ⋅146677.

It is a cyclic number.

It is not a de Polignac number, because 115699823 - 2² = 115699819 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115699813) 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, 60803 + ... + 62676.

It is an arithmetic number, because the mean of its divisors is an integer number (28956060).

Almost surely, 2^115699823 is an apocalyptic number.

115699823 is a deficient number, since it is larger than the sum of its proper divisors (124417).

115699823 is an equidigital number, since it uses as much as digits as its factorization.

115699823 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124416.

The product of its digits is 116640, while the sum is 44.

The square root of 115699823 is about 10756.3852199519. The cubic root of 115699823 is about 487.2788537173.

The spelling of 115699823 in words is "one hundred fifteen million, six hundred ninety-nine thousand, eight hundred twenty-three".