617982 has 16 divisors (see below), whose sum is σ = 1247232. Its totient is φ = 204120.

The previous prime is 617971. The next prime is 617983. The reversal of 617982 is 289716.

It is an Ulam number.

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 617982.

It is not an unprimeable number, because it can be changed into a prime (617983) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 357 + ... + 1167.

It is an arithmetic number, because the mean of its divisors is an integer number (77952).

2⁶¹⁷⁹⁸² is an apocalyptic number.

617982 is an abundant number, since it is smaller than the sum of its proper divisors (629250).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

617982 is a wasteful number, since it uses less digits than its factorization.

617982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 943.

The product of its digits is 6048, while the sum is 33.

The square root of 617982 is about 786.1183117063. The cubic root of 617982 is about 85.1775757071.

The spelling of 617982 in words is "six hundred seventeen thousand, nine hundred eighty-two".