711398 has 16 divisors (see below), whose sum is σ = 1140720. Its totient is φ = 331776.

The previous prime is 711397. The next prime is 711409. The reversal of 711398 is 893117.

It is a super-2 number, since 2×711398² = 1012174228808, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 711398.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 711398.

It is not an unprimeable number, because it can be changed into a prime (711397) 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, 3590 + ... + 3782.

It is an arithmetic number, because the mean of its divisors is an integer number (71295).

2⁷¹¹³⁹⁸ is an apocalyptic number.

711398 is a deficient number, since it is larger than the sum of its proper divisors (429322).

711398 is a wasteful number, since it uses less digits than its factorization.

711398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 311.

The product of its digits is 1512, while the sum is 29.

The square root of 711398 is about 843.4441297442. Note that the first 3 decimals coincide. The cubic root of 711398 is about 89.2697283685.

The spelling of 711398 in words is "seven hundred eleven thousand, three hundred ninety-eight".