855982 has 4 divisors (see below), whose sum is σ = 1283976. Its totient is φ = 427990.

The previous prime is 855947. The next prime is 855983. The reversal of 855982 is 289558.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 289558 = 2 ⋅144779.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (855983) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 213994 + ... + 213997.

It is an arithmetic number, because the mean of its divisors is an integer number (320994).

2⁸⁵⁵⁹⁸² is an apocalyptic number.

855982 is a deficient number, since it is larger than the sum of its proper divisors (427994).

855982 is a wasteful number, since it uses less digits than its factorization.

855982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 427993.

The product of its digits is 28800, while the sum is 37.

The square root of 855982 is about 925.1929528482. The cubic root of 855982 is about 94.9485224341.

The spelling of 855982 in words is "eight hundred fifty-five thousand, nine hundred eighty-two".