992172 has 24 divisors (see below), whose sum is σ = 2343600. Its totient is φ = 326656.

The previous prime is 992153. The next prime is 992179. The reversal of 992172 is 271299.

It is not an unprimeable number, because it can be changed into a prime (992179) by changing a digit.

992172 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 604 + ... + 1532.

It is an arithmetic number, because the mean of its divisors is an integer number (97650).

2⁹⁹²¹⁷² is an apocalyptic number.

It is an amenable number.

992172 is an abundant number, since it is smaller than the sum of its proper divisors (1351428).

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

992172 is a wasteful number, since it uses less digits than its factorization.

992172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1025 (or 1023 counting only the distinct ones).

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

The square root of 992172 is about 996.0783101745. The cubic root of 992172 is about 99.7383828281.

The spelling of 992172 in words is "nine hundred ninety-two thousand, one hundred seventy-two".