698655998 has 8 divisors (see below), whose sum is σ = 1048417560. Its totient is φ = 349183480.

The previous prime is 698655989. The next prime is 698656001. The reversal of 698655998 is 899556896.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 66113 + ... + 75948.

It is an arithmetic number, because the mean of its divisors is an integer number (131052195).

Almost surely, 2^698655998 is an apocalyptic number.

698655998 is a deficient number, since it is larger than the sum of its proper divisors (349761562).

698655998 is a wasteful number, since it uses less digits than its factorization.

698655998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144522.

The product of its digits is 41990400, while the sum is 65.

The square root of 698655998 is about 26432.1016568868. The cubic root of 698655998 is about 887.3353782609.

The spelling of 698655998 in words is "six hundred ninety-eight million, six hundred fifty-five thousand, nine hundred ninety-eight".