76805487 has 48 divisors (see below), whose sum is σ = 128044800. Its totient is φ = 43908480.

The previous prime is 76805483. The next prime is 76805497. The reversal of 76805487 is 78450867.

It is not a de Polignac number, because 76805487 - 2² = 76805483 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76805483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 202464 + ... + 202842.

It is an arithmetic number, because the mean of its divisors is an integer number (2667600).

Almost surely, 2^76805487 is an apocalyptic number.

76805487 is a deficient number, since it is larger than the sum of its proper divisors (51239313).

76805487 is a wasteful number, since it uses less digits than its factorization.

76805487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 508 (or 505 counting only the distinct ones).

The product of its (nonzero) digits is 376320, while the sum is 45.

The square root of 76805487 is about 8763.8739721655. The cubic root of 76805487 is about 425.0735503618.

The spelling of 76805487 in words is "seventy-six million, eight hundred five thousand, four hundred eighty-seven".