698111 has 2 divisors, whose sum is σ = 698112. Its totient is φ = 698110.

The previous prime is 698083. The next prime is 698171. The reversal of 698111 is 111896.

It is a weak prime. It is also a bemirp because it and its reverse can be mirrored producing other two distinct primes, 111869 and 968111.

It is a cyclic number.

It is not a de Polignac number, because 698111 - 2¹⁰ = 697087 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (698171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 349055 + 349056.

It is an arithmetic number, because the mean of its divisors is an integer number (349056).

2⁶⁹⁸¹¹¹ is an apocalyptic number.

698111 is a deficient number, since it is larger than the sum of its proper divisors (1).

698111 is an equidigital number, since it uses as much as digits as its factorization.

698111 is an evil number, because the sum of its binary digits is even.

The product of its digits is 432, while the sum is 26.

The square root of 698111 is about 835.5303704833. The cubic root of 698111 is about 88.7104591432.

The spelling of 698111 in words is "six hundred ninety-eight thousand, one hundred eleven".