2982561 has 8 divisors (see below), whose sum is σ = 4031520. Its totient is φ = 1960992.

The previous prime is 2982559. The next prime is 2982569. The reversal of 2982561 is 1652892.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2982561 - 2¹ = 2982559 is a prime.

It is a super-4 number, since 4×2982561⁴ (a number of 27 digits) contains 4444 as substring.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2982569) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6591 + ... + 7028.

It is an arithmetic number, because the mean of its divisors is an integer number (503940).

2^2982561 is an apocalyptic number.

It is an amenable number.

2982561 is a deficient number, since it is larger than the sum of its proper divisors (1048959).

2982561 is a wasteful number, since it uses less digits than its factorization.

2982561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13695.

The product of its digits is 8640, while the sum is 33.

The square root of 2982561 is about 1727.0092645959. The cubic root of 2982561 is about 143.9449538833.

The spelling of 2982561 in words is "two million, nine hundred eighty-two thousand, five hundred sixty-one".