2734581 has 4 divisors (see below), whose sum is σ = 3646112. Its totient is φ = 1823052.

The previous prime is 2734579. The next prime is 2734607. The reversal of 2734581 is 1854372.

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 not a de Polignac number, because 2734581 - 2¹ = 2734579 is a prime.

It is a super-2 number, since 2×2734581² = 14955866491122, which contains 22 as substring.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2734561) 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, 455761 + ... + 455766.

It is an arithmetic number, because the mean of its divisors is an integer number (911528).

2^2734581 is an apocalyptic number.

It is an amenable number.

2734581 is a deficient number, since it is larger than the sum of its proper divisors (911531).

2734581 is an equidigital number, since it uses as much as digits as its factorization.

2734581 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 911530.

The product of its digits is 6720, while the sum is 30.

The square root of 2734581 is about 1653.6568567874. The cubic root of 2734581 is about 139.8396292899.

The spelling of 2734581 in words is "two million, seven hundred thirty-four thousand, five hundred eighty-one".