2613321 has 6 divisors (see below), whose sum is σ = 3774810. Its totient is φ = 1742208.

The previous prime is 2613313. The next prime is 2613323. The reversal of 2613321 is 1233162.

It can be written as a sum of positive squares in only one way, i.e., 2295225 + 318096 = 1515^2 + 564^2 .

It is not a de Polignac number, because 2613321 - 2³ = 2613313 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2613294 and 2613303.

It is not an unprimeable number, because it can be changed into a prime (2613323) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 145176 + ... + 145193.

It is an arithmetic number, because the mean of its divisors is an integer number (629135).

2^2613321 is an apocalyptic number.

It is an amenable number.

2613321 is a deficient number, since it is larger than the sum of its proper divisors (1161489).

2613321 is a wasteful number, since it uses less digits than its factorization.

2613321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 290375 (or 290372 counting only the distinct ones).

The product of its digits is 216, while the sum is 18.

The square root of 2613321 is about 1616.5769390907. The cubic root of 2613321 is about 137.7413238673.

Adding to 2613321 its reverse (1233162), we get a palindrome (3846483).

The spelling of 2613321 in words is "two million, six hundred thirteen thousand, three hundred twenty-one".