3086991 has 20 divisors (see below), whose sum is σ = 4814832. Its totient is φ = 1967328.

The previous prime is 3086983. The next prime is 3086999. The reversal of 3086991 is 1996803.

It is an interprime number because it is at equal distance from previous prime (3086983) and next prime (3086999).

It is not a de Polignac number, because 3086991 - 2³ = 3086983 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3086999) 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 19 ways as a sum of consecutive naturals, for example, 1035 + ... + 2691.

Almost surely, 2^3086991 is an apocalyptic number.

3086991 is a deficient number, since it is larger than the sum of its proper divisors (1727841).

3086991 is a wasteful number, since it uses less digits than its factorization.

3086991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1692 (or 1683 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 36.

The square root of 3086991 is about 1756.9834945155. The cubic root of 3086991 is about 145.6057261112.

The spelling of 3086991 in words is "three million, eighty-six thousand, nine hundred ninety-one".