698311 has 2 divisors, whose sum is σ = 698312. Its totient is φ = 698310.

The previous prime is 698297. The next prime is 698329. The reversal of 698311 is 113896.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 698311 - 2⁷ = 698183 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 698311.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (698371) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 349155 + 349156.

It is an arithmetic number, because the mean of its divisors is an integer number (349156).

2⁶⁹⁸³¹¹ is an apocalyptic number.

698311 is a deficient number, since it is larger than the sum of its proper divisors (1).

698311 is an equidigital number, since it uses as much as digits as its factorization.

698311 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1296, while the sum is 28.

The square root of 698311 is about 835.6500463711. The cubic root of 698311 is about 88.7189298104.

The spelling of 698311 in words is "six hundred ninety-eight thousand, three hundred eleven".