3090861 has 12 divisors (see below), whose sum is σ = 4560192. Its totient is φ = 2016456.

The previous prime is 3090853. The next prime is 3090877. The reversal of 3090861 is 1680903.

It is not a de Polignac number, because 3090861 - 2³ = 3090853 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3090851) 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 11 ways as a sum of consecutive naturals, for example, 3231 + ... + 4076.

It is an arithmetic number, because the mean of its divisors is an integer number (380016).

Almost surely, 2^3090861 is an apocalyptic number.

It is an amenable number.

3090861 is a deficient number, since it is larger than the sum of its proper divisors (1469331).

3090861 is a wasteful number, since it uses less digits than its factorization.

3090861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7360 (or 7357 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 3090861 is about 1758.0844689605. The cubic root of 3090861 is about 145.6665468100. Note that the first 3 decimals are identical.

The spelling of 3090861 in words is "three million, ninety thousand, eight hundred sixty-one".