711997 has 12 divisors (see below), whose sum is σ = 843264. Its totient is φ = 595920.

The previous prime is 711983. The next prime is 712007. The reversal of 711997 is 799117.

It is a happy number.

It is not a de Polignac number, because 711997 - 2¹⁵ = 679229 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (711937) 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 11 ways as a sum of consecutive naturals, for example, 1668 + ... + 2050.

It is an arithmetic number, because the mean of its divisors is an integer number (70272).

2⁷¹¹⁹⁹⁷ is an apocalyptic number.

It is an amenable number.

711997 is a deficient number, since it is larger than the sum of its proper divisors (131267).

711997 is a wasteful number, since it uses less digits than its factorization.

711997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 420 (or 407 counting only the distinct ones).

The product of its digits is 3969, while the sum is 34.

The square root of 711997 is about 843.7991467168. The cubic root of 711997 is about 89.2947764973.

The spelling of 711997 in words is "seven hundred eleven thousand, nine hundred ninety-seven".