698404 has 12 divisors (see below), whose sum is σ = 1396864. Its totient is φ = 299304.

The previous prime is 698393. The next prime is 698413. The reversal of 698404 is 404896.

698404 = 83² + 84² + ... + 138².

698404 is an admirable number.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12444 + ... + 12499.

2⁶⁹⁸⁴⁰⁴ is an apocalyptic number.

It is an amenable number.

698404 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

698404 is a wasteful number, since it uses less digits than its factorization.

698404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24954 (or 24952 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 698404 is about 835.7056898215. The cubic root of 698404 is about 88.7228681197.

The spelling of 698404 in words is "six hundred ninety-eight thousand, four hundred four".