698636 has 6 divisors (see below), whose sum is σ = 1222620. Its totient is φ = 349316.

The previous prime is 698591. The next prime is 698641. The reversal of 698636 is 636896.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 698636.

It is an unprimeable number.

698636 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 87326 + ... + 87333.

It is an arithmetic number, because the mean of its divisors is an integer number (203770).

2⁶⁹⁸⁶³⁶ is an apocalyptic number.

It is an amenable number.

698636 is a deficient number, since it is larger than the sum of its proper divisors (523984).

698636 is a wasteful number, since it uses less digits than its factorization.

698636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174663 (or 174661 counting only the distinct ones).

The product of its digits is 46656, while the sum is 38.

The square root of 698636 is about 835.8444831426. The cubic root of 698636 is about 88.7326911957.

The spelling of 698636 in words is "six hundred ninety-eight thousand, six hundred thirty-six".