1127992 has 32 divisors (see below), whose sum is σ = 2293200. Its totient is φ = 518400.

The previous prime is 1127983. The next prime is 1127993. The reversal of 1127992 is 2997211.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1127993) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6142 + ... + 6322.

2^1127992 is an apocalyptic number.

It is an amenable number.

1127992 is an abundant number, since it is smaller than the sum of its proper divisors (1165208).

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

1127992 is a wasteful number, since it uses less digits than its factorization.

1127992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247 (or 243 counting only the distinct ones).

The product of its digits is 2268, while the sum is 31.

The square root of 1127992 is about 1062.0696775636. The cubic root of 1127992 is about 104.0963111762.

The spelling of 1127992 in words is "one million, one hundred twenty-seven thousand, nine hundred ninety-two".