3081687405 has 16 divisors (see below), whose sum is σ = 4938837504. Its totient is φ = 1640854080.

The previous prime is 3081687391. The next prime is 3081687421. The reversal of 3081687405 is 5047861803.

It is not a de Polignac number, because 3081687405 - 2¹¹ = 3081685357 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 160126 + ... + 178335.

It is an arithmetic number, because the mean of its divisors is an integer number (308677344).

Almost surely, 2^3081687405 is an apocalyptic number.

It is an amenable number.

3081687405 is a deficient number, since it is larger than the sum of its proper divisors (1857150099).

3081687405 is a wasteful number, since it uses less digits than its factorization.

3081687405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 339076.

The product of its (nonzero) digits is 161280, while the sum is 42.

The square root of 3081687405 is about 55512.9480842082. The cubic root of 3081687405 is about 1455.2229249486. Note that the first 3 decimals are identical.

The spelling of 3081687405 in words is "three billion, eighty-one million, six hundred eighty-seven thousand, four hundred five".