2971613 has 4 divisors (see below), whose sum is σ = 2975868. Its totient is φ = 2967360.

The previous prime is 2971607. The next prime is 2971663. The reversal of 2971613 is 3161792.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1965604 + 1006009 = 1402^2 + 1003^2 .

It is a cyclic number.

It is not a de Polignac number, because 2971613 - 2⁴ = 2971597 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2971603) 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, 806 + ... + 2567.

It is an arithmetic number, because the mean of its divisors is an integer number (743967).

2^2971613 is an apocalyptic number.

It is an amenable number.

2971613 is a deficient number, since it is larger than the sum of its proper divisors (4255).

2971613 is an equidigital number, since it uses as much as digits as its factorization.

2971613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4254.

The product of its digits is 2268, while the sum is 29.

The square root of 2971613 is about 1723.8367092042. The cubic root of 2971613 is about 143.7686130908.

The spelling of 2971613 in words is "two million, nine hundred seventy-one thousand, six hundred thirteen".