3081687 has 16 divisors (see below), whose sum is σ = 4722432. Its totient is φ = 1751040.

The previous prime is 3081677. The next prime is 3081691. The reversal of 3081687 is 7861803.

It is not a de Polignac number, because 3081687 - 2²⁰ = 2033111 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3081677) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5112 + ... + 5682.

It is an arithmetic number, because the mean of its divisors is an integer number (295152).

Almost surely, 2^3081687 is an apocalyptic number.

3081687 is a deficient number, since it is larger than the sum of its proper divisors (1640745).

3081687 is a wasteful number, since it uses less digits than its factorization.

3081687 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 838.

The product of its (nonzero) digits is 8064, while the sum is 33.

The square root of 3081687 is about 1755.4734404143. The cubic root of 3081687 is about 145.5222861199.

It can be divided in two parts, 30816 and 87, that added together give a palindrome (30903).

The spelling of 3081687 in words is "three million, eighty-one thousand, six hundred eighty-seven".