1992841 has 2 divisors, whose sum is σ = 1992842. Its totient is φ = 1992840.

The previous prime is 1992839. The next prime is 1992877. The reversal of 1992841 is 1482991.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1836025 + 156816 = 1355^2 + 396^2 .

It is a cyclic number.

It is not a de Polignac number, because 1992841 - 2¹ = 1992839 is a prime.

Together with 1992839, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 1992797 and 1992806.

It is not a weakly prime, because it can be changed into another prime (1992041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 996420 + 996421.

It is an arithmetic number, because the mean of its divisors is an integer number (996421).

2^1992841 is an apocalyptic number.

It is an amenable number.

1992841 is a deficient number, since it is larger than the sum of its proper divisors (1).

1992841 is an equidigital number, since it uses as much as digits as its factorization.

1992841 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5184, while the sum is 34.

The square root of 1992841 is about 1411.6802045789. The cubic root of 1992841 is about 125.8415956838.

The spelling of 1992841 in words is "one million, nine hundred ninety-two thousand, eight hundred forty-one".