711965 has 16 divisors (see below), whose sum is σ = 919296. Its totient is φ = 528000.

The previous prime is 711959. The next prime is 711967. The reversal of 711965 is 569117.

It is a happy number.

It is not a de Polignac number, because 711965 - 2⁸ = 711709 is a prime.

It is a super-2 number, since 2×711965² = 1013788322450, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (711967) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4640 + ... + 4790.

It is an arithmetic number, because the mean of its divisors is an integer number (57456).

2⁷¹¹⁹⁶⁵ is an apocalyptic number.

It is an amenable number.

711965 is a deficient number, since it is larger than the sum of its proper divisors (207331).

711965 is a wasteful number, since it uses less digits than its factorization.

711965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220.

The product of its digits is 1890, while the sum is 29.

The square root of 711965 is about 843.7801846453. The cubic root of 711965 is about 89.2934387222.

The spelling of 711965 in words is "seven hundred eleven thousand, nine hundred sixty-five".