698315856 has 120 divisors (see below), whose sum is σ = 2106829440. Its totient is φ = 198729216.

The previous prime is 698315843. The next prime is 698315867. The reversal of 698315856 is 658513896.

698315856 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 698315799 and 698315808.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 862780 + ... + 863588.

It is an arithmetic number, because the mean of its divisors is an integer number (17556912).

Almost surely, 2^698315856 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 698315856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1053414720).

698315856 is an abundant number, since it is smaller than the sum of its proper divisors (1408513584).

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

698315856 is a wasteful number, since it uses less digits than its factorization.

698315856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1201 (or 1188 counting only the distinct ones).

The product of its digits is 1555200, while the sum is 51.

The square root of 698315856 is about 26425.6666141083. Note that the first 4 decimals coincide. The cubic root of 698315856 is about 887.1913545807.

The spelling of 698315856 in words is "six hundred ninety-eight million, three hundred fifteen thousand, eight hundred fifty-six".