115685487 has 12 divisors (see below), whose sum is σ = 167853504. Its totient is φ = 76776480.

The previous prime is 115685461. The next prime is 115685519. The reversal of 115685487 is 784586511.

115685487 is a `hidden beast` number, since 1 + 1 + 568 + 5 + 4 + 87 = 666.

It is not a de Polignac number, because 115685487 - 2⁷ = 115685359 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115685407) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 26814 + ... + 30827.

It is an arithmetic number, because the mean of its divisors is an integer number (13987792).

Almost surely, 2^115685487 is an apocalyptic number.

115685487 is a deficient number, since it is larger than the sum of its proper divisors (52168017).

115685487 is a wasteful number, since it uses less digits than its factorization.

115685487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57870 (or 57867 counting only the distinct ones).

The product of its digits is 268800, while the sum is 45.

The square root of 115685487 is about 10755.7188044314. The cubic root of 115685487 is about 487.2587271576.

The spelling of 115685487 in words is "one hundred fifteen million, six hundred eighty-five thousand, four hundred eighty-seven".