2961321 has 16 divisors (see below), whose sum is σ = 4535040. Its totient is φ = 1699920.

The previous prime is 2961311. The next prime is 2961331. The reversal of 2961321 is 1231692.

It is an interprime number because it is at equal distance from previous prime (2961311) and next prime (2961331).

It is not a de Polignac number, because 2961321 - 2⁵ = 2961289 is a prime.

2961321 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 2961291 and 2961300.

It is not an unprimeable number, because it can be changed into a prime (2961311) 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 15 ways as a sum of consecutive naturals, for example, 1735 + ... + 2988.

It is an arithmetic number, because the mean of its divisors is an integer number (283440).

2^2961321 is an apocalyptic number.

It is an amenable number.

2961321 is a deficient number, since it is larger than the sum of its proper divisors (1573719).

2961321 is a wasteful number, since it uses less digits than its factorization.

2961321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4756.

The product of its digits is 648, while the sum is 24.

The square root of 2961321 is about 1720.8489184121. The cubic root of 2961321 is about 143.6024431683.

The spelling of 2961321 in words is "two million, nine hundred sixty-one thousand, three hundred twenty-one".