3098581 has 4 divisors (see below), whose sum is σ = 3107392. Its totient is φ = 3089772.

The previous prime is 3098561. The next prime is 3098597. The reversal of 3098581 is 1858903.

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 a cyclic number.

It is not a de Polignac number, because 3098581 - 2⁷ = 3098453 is a prime.

It is a super-2 number, since 2×3098581² = 19202408427122, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

3098581 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3098521) 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, 3855 + ... + 4588.

It is an arithmetic number, because the mean of its divisors is an integer number (776848).

Almost surely, 2^3098581 is an apocalyptic number.

It is an amenable number.

3098581 is a deficient number, since it is larger than the sum of its proper divisors (8811).

3098581 is an equidigital number, since it uses as much as digits as its factorization.

3098581 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8810.

The product of its (nonzero) digits is 8640, while the sum is 34.

The square root of 3098581 is about 1760.2786711200. The cubic root of 3098581 is about 145.7877224074.

The spelling of 3098581 in words is "three million, ninety-eight thousand, five hundred eighty-one".