1992543 has 16 divisors (see below), whose sum is σ = 3056640. Its totient is φ = 1130976.

The previous prime is 1992533. The next prime is 1992547. The reversal of 1992543 is 3452991.

It is not a de Polignac number, because 1992543 - 2⁴ = 1992527 is a prime.

It is a d-powerful number, because it can be written as 1 + 9² + 9⁴ + 2¹⁵ + 5⁹ + 4 + 3 .

1992543 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1992547) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4821 + ... + 5217.

It is an arithmetic number, because the mean of its divisors is an integer number (191040).

2^1992543 is an apocalyptic number.

1992543 is a deficient number, since it is larger than the sum of its proper divisors (1064097).

1992543 is a wasteful number, since it uses less digits than its factorization.

1992543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 646.

The product of its digits is 9720, while the sum is 33.

The square root of 1992543 is about 1411.5746526486. The cubic root of 1992543 is about 125.8353227858.

The spelling of 1992543 in words is "one million, nine hundred ninety-two thousand, five hundred forty-three".