1982931 has 16 divisors (see below), whose sum is σ = 2851200. Its totient is φ = 1221248.

The previous prime is 1982921. The next prime is 1982951. The reversal of 1982931 is 1392891.

It is a cyclic number.

It is not a de Polignac number, because 1982931 - 2⁷ = 1982803 is a prime.

It is a super-2 number, since 2×1982931² = 7864030701522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1982892 and 1982901.

It is not an unprimeable number, because it can be changed into a prime (1982921) 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 15 ways as a sum of consecutive naturals, for example, 2680 + ... + 3338.

It is an arithmetic number, because the mean of its divisors is an integer number (178200).

2^1982931 is an apocalyptic number.

1982931 is a deficient number, since it is larger than the sum of its proper divisors (868269).

1982931 is a wasteful number, since it uses less digits than its factorization.

1982931 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 738.

The product of its digits is 3888, while the sum is 33.

The square root of 1982931 is about 1408.1658283029. The cubic root of 1982931 is about 125.6326539234.

The spelling of 1982931 in words is "one million, nine hundred eighty-two thousand, nine hundred thirty-one".