1027992 has 64 divisors (see below), whose sum is σ = 3052800. Its totient is φ = 282240.

The previous prime is 1027987. The next prime is 1028003. The reversal of 1027992 is 2997201.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 4767 + ... + 4977.

It is an arithmetic number, because the mean of its divisors is an integer number (47700).

2^1027992 is an apocalyptic number.

1027992 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1027992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1526400).

1027992 is an abundant number, since it is smaller than the sum of its proper divisors (2024808).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1027992 is a wasteful number, since it uses less digits than its factorization.

1027992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 256 (or 252 counting only the distinct ones).

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

The square root of 1027992 is about 1013.8994032940. The cubic root of 1027992 is about 100.9244934469.

The spelling of 1027992 in words is "one million, twenty-seven thousand, nine hundred ninety-two".