417982 has 4 divisors (see below), whose sum is σ = 626976. Its totient is φ = 208990.

The previous prime is 417961. The next prime is 417983. The reversal of 417982 is 289714.

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

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (417983) by changing a digit.

417982 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 104494 + ... + 104497.

It is an arithmetic number, because the mean of its divisors is an integer number (156744).

2⁴¹⁷⁹⁸² is an apocalyptic number.

417982 is a deficient number, since it is larger than the sum of its proper divisors (208994).

417982 is a wasteful number, since it uses less digits than its factorization.

417982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208993.

The product of its digits is 4032, while the sum is 31.

The square root of 417982 is about 646.5152743749. The cubic root of 417982 is about 74.7685904329.

The spelling of 417982 in words is "four hundred seventeen thousand, nine hundred eighty-two".