3087491 has 4 divisors (see below), whose sum is σ = 3368184. Its totient is φ = 2806800.

The previous prime is 3087479. The next prime is 3087509. The reversal of 3087491 is 1947803.

3087491 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3087491 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3087431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 140330 + ... + 140351.

It is an arithmetic number, because the mean of its divisors is an integer number (842046).

Almost surely, 2^3087491 is an apocalyptic number.

3087491 is a deficient number, since it is larger than the sum of its proper divisors (280693).

3087491 is a wasteful number, since it uses less digits than its factorization.

3087491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 280692.

The product of its (nonzero) digits is 6048, while the sum is 32.

The square root of 3087491 is about 1757.1257780819. The cubic root of 3087491 is about 145.6135869410.

The spelling of 3087491 in words is "three million, eighty-seven thousand, four hundred ninety-one".