115877686 has 4 divisors (see below), whose sum is σ = 173816532. Its totient is φ = 57938842.

The previous prime is 115877677. The next prime is 115877689. The reversal of 115877686 is 686778511.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 686778511 = 1123 ⋅611557.

It is a super-2 number, since 2×115877686² = 26855276225429192, which contains 22 as substring.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115877689) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28969420 + ... + 28969423.

It is an arithmetic number, because the mean of its divisors is an integer number (43454133).

Almost surely, 2^115877686 is an apocalyptic number.

115877686 is a deficient number, since it is larger than the sum of its proper divisors (57938846).

115877686 is an equidigital number, since it uses as much as digits as its factorization.

115877686 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57938845.

The product of its digits is 564480, while the sum is 49.

The square root of 115877686 is about 10764.6498317409. The cubic root of 115877686 is about 487.5284205215.

The spelling of 115877686 in words is "one hundred fifteen million, eight hundred seventy-seven thousand, six hundred eighty-six".