2956641 has 4 divisors (see below), whose sum is σ = 3942192. Its totient is φ = 1971092.

The previous prime is 2956631. The next prime is 2956649. The reversal of 2956641 is 1466592.

2956641 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2956641 is a prime.

It is a D-number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2956649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 492771 + ... + 492776.

It is an arithmetic number, because the mean of its divisors is an integer number (985548).

2^2956641 is an apocalyptic number.

2956641 is the 1088-th centered pentagonal number.

It is an amenable number.

2956641 is a deficient number, since it is larger than the sum of its proper divisors (985551).

2956641 is an equidigital number, since it uses as much as digits as its factorization.

2956641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 985550.

The product of its digits is 12960, while the sum is 33.

The square root of 2956641 is about 1719.4885867606. The cubic root of 2956641 is about 143.5267546743.

The spelling of 2956641 in words is "two million, nine hundred fifty-six thousand, six hundred forty-one".