2613491 has 4 divisors (see below), whose sum is σ = 2622312. Its totient is φ = 2604672.

The previous prime is 2613487. The next prime is 2613503. The reversal of 2613491 is 1943162.

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

It is a cyclic number.

It is not a de Polignac number, because 2613491 - 2² = 2613487 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2613491.

It is not an unprimeable number, because it can be changed into a prime (2613991) 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 3 ways as a sum of consecutive naturals, for example, 3950 + ... + 4563.

It is an arithmetic number, because the mean of its divisors is an integer number (655578).

2^2613491 is an apocalyptic number.

2613491 is a deficient number, since it is larger than the sum of its proper divisors (8821).

2613491 is an equidigital number, since it uses as much as digits as its factorization.

2613491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8820.

The product of its digits is 1296, while the sum is 26.

The square root of 2613491 is about 1616.6295184735. The cubic root of 2613491 is about 137.7443105545.

The spelling of 2613491 in words is "two million, six hundred thirteen thousand, four hundred ninety-one".