91844 has 6 divisors (see below), whose sum is σ = 160734. Its totient is φ = 45920.

The previous prime is 91841. The next prime is 91867. The reversal of 91844 is 44819.

It can be written as a sum of positive squares in only one way, i.e., 84100 + 7744 = 290^2 + 88^2 .

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 91844.

It is not an unprimeable number, because it can be changed into a prime (91841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11477 + ... + 11484.

It is an arithmetic number, because the mean of its divisors is an integer number (26789).

2⁹¹⁸⁴⁴ is an apocalyptic number.

It is an amenable number.

91844 is a deficient number, since it is larger than the sum of its proper divisors (68890).

91844 is a wasteful number, since it uses less digits than its factorization.

91844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22965 (or 22963 counting only the distinct ones).

The product of its digits is 1152, while the sum is 26.

The square root of 91844 is about 303.0577502721. The cubic root of 91844 is about 45.1180439858.

The spelling of 91844 in words is "ninety-one thousand, eight hundred forty-four".