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3841 = 23167
BaseRepresentation
bin111100000001
312021021
4330001
5110331
625441
714125
oct7401
95237
103841
112982
122281
131996
141585
151211
hexf01

3841 has 4 divisors (see below), whose sum is σ = 4032. Its totient is φ = 3652.

The previous prime is 3833. The next prime is 3847. The reversal of 3841 is 1483.

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 3841 - 23 = 3833 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3847) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61 + ... + 106.

It is an arithmetic number, because the mean of its divisors is an integer number (1008).

It is a Proth number, since it is equal to 15 ⋅ 28 + 1 and 15 < 28.

23841 is an apocalyptic number.

It is an amenable number.

3841 is a deficient number, since it is larger than the sum of its proper divisors (191).

3841 is a wasteful number, since it uses less digits than its factorization.

3841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190.

The product of its digits is 96, while the sum is 16.

The square root of 3841 is about 61.9758017294. The cubic root of 3841 is about 15.6608297757.

The spelling of 3841 in words is "three thousand, eight hundred forty-one".

Divisors: 1 23 167 3841