115680977 has 4 divisors (see below), whose sum is σ = 116058096. Its totient is φ = 115303860.

The previous prime is 115680973. The next prime is 115680989. The reversal of 115680977 is 779086511.

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 an emirpimes, since its reverse is a distinct semiprime: 779086511 = 7 ⋅111298073.

It is a cyclic number.

It is not a de Polignac number, because 115680977 - 2² = 115680973 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (115680973) 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, 188099 + ... + 188712.

It is an arithmetic number, because the mean of its divisors is an integer number (29014524).

Almost surely, 2^115680977 is an apocalyptic number.

It is an amenable number.

115680977 is a deficient number, since it is larger than the sum of its proper divisors (377119).

115680977 is an equidigital number, since it uses as much as digits as its factorization.

115680977 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 377118.

The product of its (nonzero) digits is 105840, while the sum is 44.

The square root of 115680977 is about 10755.5091464793. The cubic root of 115680977 is about 487.2523951463.

The spelling of 115680977 in words is "one hundred fifteen million, six hundred eighty thousand, nine hundred seventy-seven".