2980581 has 4 divisors (see below), whose sum is σ = 3974112. Its totient is φ = 1987052.

The previous prime is 2980573. The next prime is 2980583. The reversal of 2980581 is 1850892.

It is a happy number.

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 2980581 - 2³ = 2980573 is a prime.

It is a super-2 number, since 2×2980581² = 17767726195122, which contains 22 as substring.

It is an Ulam number.

It is a D-number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2980583) 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, 496761 + ... + 496766.

It is an arithmetic number, because the mean of its divisors is an integer number (993528).

2^2980581 is an apocalyptic number.

It is an amenable number.

2980581 is a deficient number, since it is larger than the sum of its proper divisors (993531).

2980581 is an equidigital number, since it uses as much as digits as its factorization.

2980581 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 993530.

The product of its (nonzero) digits is 5760, while the sum is 33.

The square root of 2980581 is about 1726.4359240933. The cubic root of 2980581 is about 143.9130937804.

The spelling of 2980581 in words is "two million, nine hundred eighty thousand, five hundred eighty-one".