698263856 has 20 divisors (see below), whose sum is σ = 1399538400. Its totient is φ = 337092672.

The previous prime is 698263849. The next prime is 698263873. The reversal of 698263856 is 658362896.

It is a Smith number, since the sum of its digits (53) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 698263798 and 698263807.

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, 751976 + ... + 752903.

It is an arithmetic number, because the mean of its divisors is an integer number (69976920).

Almost surely, 2^698263856 is an apocalyptic number.

It is an amenable number.

698263856 is an abundant number, since it is smaller than the sum of its proper divisors (701274544).

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

698263856 is a wasteful number, since it uses less digits than its factorization.

698263856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1504916 (or 1504910 counting only the distinct ones).

The product of its digits is 3732480, while the sum is 53.

The square root of 698263856 is about 26424.6827038661. The cubic root of 698263856 is about 887.1693325042.

The spelling of 698263856 in words is "six hundred ninety-eight million, two hundred sixty-three thousand, eight hundred fifty-six".