1992027 has 4 divisors (see below), whose sum is σ = 2656040. Its totient is φ = 1328016.

The previous prime is 1991999. The next prime is 1992031. The reversal of 1992027 is 7202991.

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

It is not a de Polignac number, because 1992027 - 2⁶ = 1991963 is a prime.

It is a D-number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1991985 and 1992003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1992227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 332002 + ... + 332007.

It is an arithmetic number, because the mean of its divisors is an integer number (664010).

2^1992027 is an apocalyptic number.

1992027 is a deficient number, since it is larger than the sum of its proper divisors (664013).

1992027 is an equidigital number, since it uses as much as digits as its factorization.

1992027 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 664012.

The product of its (nonzero) digits is 2268, while the sum is 30.

The square root of 1992027 is about 1411.3918662087. The cubic root of 1992027 is about 125.8244595100.

The spelling of 1992027 in words is "one million, nine hundred ninety-two thousand, twenty-seven".