711866 has 4 divisors (see below), whose sum is σ = 1067802. Its totient is φ = 355932.

The previous prime is 711859. The next prime is 711877. The reversal of 711866 is 668117.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 668117 = 17 ⋅39301.

It can be written as a sum of positive squares in only one way, i.e., 697225 + 14641 = 835^2 + 121^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 177965 + ... + 177968.

2⁷¹¹⁸⁶⁶ is an apocalyptic number.

711866 is a deficient number, since it is larger than the sum of its proper divisors (355936).

711866 is a wasteful number, since it uses less digits than its factorization.

711866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 355935.

The product of its digits is 2016, while the sum is 29.

The square root of 711866 is about 843.7215180378. The cubic root of 711866 is about 89.2892997265.

The spelling of 711866 in words is "seven hundred eleven thousand, eight hundred sixty-six".