61843 has 2 divisors, whose sum is σ = 61844. Its totient is φ = 61842.

The previous prime is 61837. The next prime is 61861. The reversal of 61843 is 34816.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 61843 - 2⁹ = 61331 is a prime.

It is a plaindrome in base 15.

It is not a weakly prime, because it can be changed into another prime (61813) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30921 + 30922.

It is an arithmetic number, because the mean of its divisors is an integer number (30922).

2⁶¹⁸⁴³ is an apocalyptic number.

61843 is a deficient number, since it is larger than the sum of its proper divisors (1).

61843 is an equidigital number, since it uses as much as digits as its factorization.

61843 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 576, while the sum is 22.

The square root of 61843 is about 248.6825285379. The cubic root of 61843 is about 39.5454798480.

It can be divided in two parts, 6 and 1843, that added together give a square (1849 = 43²).

The spelling of 61843 in words is "sixty-one thousand, eight hundred forty-three".