3087691 has 4 divisors (see below), whose sum is σ = 3096792. Its totient is φ = 3078592.

The previous prime is 3087673. The next prime is 3087703. The reversal of 3087691 is 1967803.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 3087691 - 2⁹ = 3087179 is a prime.

It is a super-2 number, since 2×3087691² = 19067671422962, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3087661) 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 3 ways as a sum of consecutive naturals, for example, 4021 + ... + 4726.

It is an arithmetic number, because the mean of its divisors is an integer number (774198).

Almost surely, 2^3087691 is an apocalyptic number.

3087691 is a deficient number, since it is larger than the sum of its proper divisors (9101).

3087691 is an equidigital number, since it uses as much as digits as its factorization.

3087691 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9100.

The product of its (nonzero) digits is 9072, while the sum is 34.

The square root of 3087691 is about 1757.1826882826. The cubic root of 3087691 is about 145.6167310353.

The spelling of 3087691 in words is "three million, eighty-seven thousand, six hundred ninety-one".