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2841 = 3947

2841 has 4 divisors (see below), whose sum is σ = 3792. Its totient is φ = 1892.

The previous prime is 2837. The next prime is 2843. The reversal of 2841 is 1482.

2841 = T8 + T9 + ... + T25.

2841 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 not a de Polignac number, because 2841 - 22 = 2837 is a prime.

It is a D-number.

It is a Curzon number.

2841 is a lucky number.

It is a plaindrome in base 7 and base 12.

It is a nialpdrome in base 8 and base 15.

It is a zygodrome in base 7.

It is a self number, because there is not a number n which added to its sum of digits gives 2841.

It is not an unprimeable number, because it can be changed into a prime (2843) 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, 471 + ... + 476.

It is an arithmetic number, because the mean of its divisors is an integer number (948).

22841 is an apocalyptic number.

It is an amenable number.

2841 is a deficient number, since it is larger than the sum of its proper divisors (951).

2841 is an equidigital number, since it uses as much as digits as its factorization.

2841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 950.

The product of its digits is 64, while the sum is 15.

The square root of 2841 is about 53.3010318849. The cubic root of 2841 is about 14.1630594430.

The spelling of 2841 in words is "two thousand, eight hundred forty-one".

Divisors: 1 3 947 2841