361983 has 4 divisors (see below), whose sum is σ = 482648. Its totient is φ = 241320.

The previous prime is 361979. The next prime is 361993. The reversal of 361983 is 389163.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 361983 - 2² = 361979 is a prime.

It is a D-number.

It is a Duffinian number.

361983 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 361983.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 361983.

It is not an unprimeable number, because it can be changed into a prime (361903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 60328 + ... + 60333.

It is an arithmetic number, because the mean of its divisors is an integer number (120662).

2³⁶¹⁹⁸³ is an apocalyptic number.

361983 is a deficient number, since it is larger than the sum of its proper divisors (120665).

361983 is a wasteful number, since it uses less digits than its factorization.

361983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120664.

The product of its digits is 3888, while the sum is 30.

The square root of 361983 is about 601.6502306158. The cubic root of 361983 is about 71.2682440200.

The spelling of 361983 in words is "three hundred sixty-one thousand, nine hundred eighty-three".