791172 has 18 divisors (see below), whose sum is σ = 1999998. Its totient is φ = 263712.

The previous prime is 791159. The next prime is 791191. The reversal of 791172 is 271197.

It can be written as a sum of positive squares in only one way, i.e., 665856 + 125316 = 816^2 + 354^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is an unprimeable number.

791172 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10953 + ... + 11024.

It is an arithmetic number, because the mean of its divisors is an integer number (111111).

2⁷⁹¹¹⁷² is an apocalyptic number.

It is an amenable number.

791172 is an abundant number, since it is smaller than the sum of its proper divisors (1208826).

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

791172 is a wasteful number, since it uses less digits than its factorization.

791172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21987 (or 21982 counting only the distinct ones).

The product of its digits is 882, while the sum is 27.

The square root of 791172 is about 889.4784988970. The cubic root of 791172 is about 92.4890466699.

The spelling of 791172 in words is "seven hundred ninety-one thousand, one hundred seventy-two".