698489998 has 8 divisors (see below), whose sum is σ = 1083863880. Its totient is φ = 337202040.

The previous prime is 698489971. The next prime is 698490031. The reversal of 698489998 is 899984896.

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 pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6021408 + ... + 6021523.

It is an arithmetic number, because the mean of its divisors is an integer number (135482985).

Almost surely, 2^698489998 is an apocalyptic number.

698489998 is a deficient number, since it is larger than the sum of its proper divisors (385373882).

698489998 is a wasteful number, since it uses less digits than its factorization.

698489998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12042962.

The product of its digits is 80621568, while the sum is 70.

The square root of 698489998 is about 26428.9613492472. The cubic root of 698489998 is about 887.2650960139.

The spelling of 698489998 in words is "six hundred ninety-eight million, four hundred eighty-nine thousand, nine hundred ninety-eight".