698166 has 32 divisors (see below), whose sum is σ = 1774080. Its totient is φ = 199368.

The previous prime is 698111. The next prime is 698171. The reversal of 698166 is 661896.

It is a self number, because there is not a number n which added to its sum of digits gives 698166.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 546 + ... + 1301.

It is an arithmetic number, because the mean of its divisors is an integer number (55440).

2⁶⁹⁸¹⁶⁶ is an apocalyptic number.

698166 is an abundant number, since it is smaller than the sum of its proper divisors (1075914).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

698166 is a wasteful number, since it uses less digits than its factorization.

698166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1865 (or 1859 counting only the distinct ones).

The product of its digits is 15552, while the sum is 36.

The square root of 698166 is about 835.5632830612. The cubic root of 698166 is about 88.7127887379.

The spelling of 698166 in words is "six hundred ninety-eight thousand, one hundred sixty-six".