43801 has 2 divisors, whose sum is σ = 43802. Its totient is φ = 43800.

The previous prime is 43793. The next prime is 43853. The reversal of 43801 is 10834.

43801 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 38025 + 5776 = 195^2 + 76^2 .

It is a cyclic number.

It is not a de Polignac number, because 43801 - 2³ = 43793 is a prime.

It is not a weakly prime, because it can be changed into another prime (43891) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21900 + 21901.

It is an arithmetic number, because the mean of its divisors is an integer number (21901).

2⁴³⁸⁰¹ is an apocalyptic number.

It is an amenable number.

43801 is a deficient number, since it is larger than the sum of its proper divisors (1).

43801 is an equidigital number, since it uses as much as digits as its factorization.

43801 is an evil number, because the sum of its binary digits is even.

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

The square root of 43801 is about 209.2868844433. The cubic root of 43801 is about 35.2501802382.

It can be divided in two parts, 43 and 801, that multiplied together give a palindrome (34443).

The spelling of 43801 in words is "forty-three thousand, eight hundred one".