1985882 has 4 divisors (see below), whose sum is σ = 2978826. Its totient is φ = 992940.

The previous prime is 1985873. The next prime is 1985887. The reversal of 1985882 is 2885891.

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

It can be written as a sum of positive squares in only one way, i.e., 1100401 + 885481 = 1049^2 + 941^2 .

It is not an unprimeable number, because it can be changed into a prime (1985887) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 496469 + ... + 496472.

2^1985882 is an apocalyptic number.

1985882 is a deficient number, since it is larger than the sum of its proper divisors (992944).

1985882 is an equidigital number, since it uses as much as digits as its factorization.

1985882 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 992943.

The product of its digits is 46080, while the sum is 41.

The square root of 1985882 is about 1409.2132556856. The cubic root of 1985882 is about 125.6949452489.

Subtracting 1985882 from its reverse (2885891), we obtain a palindrome (900009).

The spelling of 1985882 in words is "one million, nine hundred eighty-five thousand, eight hundred eighty-two".