361843 has 2 divisors, whose sum is σ = 361844. Its totient is φ = 361842.

The previous prime is 361807. The next prime is 361871. The reversal of 361843 is 348163.

It is a strong prime.

It is an emirp because it is prime and its reverse (348163) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 361843 - 2¹⁷ = 230771 is a prime.

361843 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (361873) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 180921 + 180922.

It is an arithmetic number, because the mean of its divisors is an integer number (180922).

2³⁶¹⁸⁴³ is an apocalyptic number.

361843 is a deficient number, since it is larger than the sum of its proper divisors (1).

361843 is an equidigital number, since it uses as much as digits as its factorization.

361843 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1728, while the sum is 25.

The square root of 361843 is about 601.5338726955. The cubic root of 361843 is about 71.2590549690.

The spelling of 361843 in words is "three hundred sixty-one thousand, eight hundred forty-three".