3116681 has 4 divisors (see below), whose sum is σ = 3131664. Its totient is φ = 3101700.

The previous prime is 3116671. The next prime is 3116689. The reversal of 3116681 is 1866113.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 3116681 - 2¹⁰ = 3115657 is a prime.

It is a super-2 number, since 2×3116681² = 19427400911522, which contains 22 as substring.

It is an Ulam number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3116681.

It is not an unprimeable number, because it can be changed into a prime (3116689) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7175 + ... + 7596.

It is an arithmetic number, because the mean of its divisors is an integer number (782916).

Almost surely, 2^3116681 is an apocalyptic number.

It is an amenable number.

3116681 is a deficient number, since it is larger than the sum of its proper divisors (14983).

3116681 is a wasteful number, since it uses less digits than its factorization.

3116681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14982.

The product of its digits is 864, while the sum is 26.

The square root of 3116681 is about 1765.4124164059. The cubic root of 3116681 is about 146.0710388014.

The spelling of 3116681 in words is "three million, one hundred sixteen thousand, six hundred eighty-one".