709381172 has 6 divisors (see below), whose sum is σ = 1241417058. Its totient is φ = 354690584.

The previous prime is 709381171. The next prime is 709381177. The reversal of 709381172 is 271183907.

It can be written as a sum of positive squares in only one way, i.e., 629207056 + 80174116 = 25084^2 + 8954^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (709381171) by changing a digit.

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 as a sum of consecutive naturals, namely, 88672643 + ... + 88672650.

It is an arithmetic number, because the mean of its divisors is an integer number (206902843).

Almost surely, 2^709381172 is an apocalyptic number.

It is an amenable number.

709381172 is a deficient number, since it is larger than the sum of its proper divisors (532035886).

709381172 is a wasteful number, since it uses less digits than its factorization.

709381172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177345297 (or 177345295 counting only the distinct ones).

The product of its (nonzero) digits is 21168, while the sum is 38.

The square root of 709381172 is about 26634.2105571012. The cubic root of 709381172 is about 891.8528801450.

The spelling of 709381172 in words is "seven hundred nine million, three hundred eighty-one thousand, one hundred seventy-two".