711855 has 16 divisors (see below), whose sum is σ = 1265760. Its totient is φ = 379584.

The previous prime is 711847. The next prime is 711859. The reversal of 711855 is 558117.

711855 = T₉₀ + T₉₁ + ... + T₁₇₀.

It is not a de Polignac number, because 711855 - 2³ = 711847 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a zygodrome in base 3.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (711859) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2502 + ... + 2771.

It is an arithmetic number, because the mean of its divisors is an integer number (79110).

2⁷¹¹⁸⁵⁵ is an apocalyptic number.

711855 is a deficient number, since it is larger than the sum of its proper divisors (553905).

711855 is a wasteful number, since it uses less digits than its factorization.

711855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5287 (or 5281 counting only the distinct ones).

The product of its digits is 1400, while the sum is 27.

The square root of 711855 is about 843.7149992740. The cubic root of 711855 is about 89.2888398144.

The spelling of 711855 in words is "seven hundred eleven thousand, eight hundred fifty-five".