711745 has 8 divisors (see below), whose sum is σ = 858816. Its totient is φ = 566256.

The previous prime is 711731. The next prime is 711749. The reversal of 711745 is 547117.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 711745 - 2⁵ = 711713 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (711749) 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, 1164 + ... + 1666.

It is an arithmetic number, because the mean of its divisors is an integer number (107352).

2⁷¹¹⁷⁴⁵ is an apocalyptic number.

It is an amenable number.

711745 is a deficient number, since it is larger than the sum of its proper divisors (147071).

711745 is a wasteful number, since it uses less digits than its factorization.

711745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 791.

The product of its digits is 980, while the sum is 25.

The square root of 711745 is about 843.6498088662. The cubic root of 711745 is about 89.2842404328.

It can be divided in two parts, 7 and 11745, that multiplied together give a triangular number (82215 = T₄₀₅).

The spelling of 711745 in words is "seven hundred eleven thousand, seven hundred forty-five".