406983 has 4 divisors (see below), whose sum is σ = 542648. Its totient is φ = 271320.

The previous prime is 406981. The next prime is 406993. The reversal of 406983 is 389604.

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

It is not a de Polignac number, because 406983 - 2¹ = 406981 is a prime.

It is a D-number.

It is a Duffinian number.

406983 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 406983.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (406981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67828 + ... + 67833.

It is an arithmetic number, because the mean of its divisors is an integer number (135662).

2⁴⁰⁶⁹⁸³ is an apocalyptic number.

406983 is a deficient number, since it is larger than the sum of its proper divisors (135665).

406983 is a wasteful number, since it uses less digits than its factorization.

406983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135664.

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 406983 is about 637.9521925662. The cubic root of 406983 is about 74.1069187338.

The spelling of 406983 in words is "four hundred six thousand, nine hundred eighty-three".