76871685 has 32 divisors (see below), whose sum is σ = 135001728. Its totient is φ = 37041920.

The previous prime is 76871657. The next prime is 76871687. The reversal of 76871685 is 58617867.

It is not a de Polignac number, because 76871685 - 2⁶ = 76871621 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76871687) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 27199 + ... + 29891.

It is an arithmetic number, because the mean of its divisors is an integer number (4218804).

Almost surely, 2^76871685 is an apocalyptic number.

It is an amenable number.

76871685 is a deficient number, since it is larger than the sum of its proper divisors (58130043).

76871685 is a wasteful number, since it uses less digits than its factorization.

76871685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2885.

The product of its digits is 564480, while the sum is 48.

The square root of 76871685 is about 8767.6499131751. The cubic root of 76871685 is about 425.1956377264.

The spelling of 76871685 in words is "seventy-six million, eight hundred seventy-one thousand, six hundred eighty-five".