698479866 has 24 divisors (see below), whose sum is σ = 1729569504. Its totient is φ = 199565640.

The previous prime is 698479823. The next prime is 698479883. The reversal of 698479866 is 668974896.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2771620 + ... + 2771871.

It is an arithmetic number, because the mean of its divisors is an integer number (72065396).

Almost surely, 2^698479866 is an apocalyptic number.

698479866 is an abundant number, since it is smaller than the sum of its proper divisors (1031089638).

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

698479866 is a wasteful number, since it uses less digits than its factorization.

698479866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5543506 (or 5543503 counting only the distinct ones).

The product of its digits is 31352832, while the sum is 63.

The square root of 698479866 is about 26428.7696648936. The cubic root of 698479866 is about 887.2608058959.

The spelling of 698479866 in words is "six hundred ninety-eight million, four hundred seventy-nine thousand, eight hundred sixty-six".