698279868 has 288 divisors, whose sum is σ = 2238163200. Its totient is φ = 181906560.

The previous prime is 698279831. The next prime is 698279891. The reversal of 698279868 is 868972896.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 11835223 + ... + 11835281.

It is an arithmetic number, because the mean of its divisors is an integer number (7771400).

Almost surely, 2^698279868 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 698279868, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1119081600).

698279868 is an abundant number, since it is smaller than the sum of its proper divisors (1539883332).

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

698279868 is a wasteful number, since it uses less digits than its factorization.

698279868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134 (or 107 counting only the distinct ones).

The product of its digits is 20901888, while the sum is 63.

The square root of 698279868 is about 26424.9856764389. The cubic root of 698279868 is about 887.1761137262.

The spelling of 698279868 in words is "six hundred ninety-eight million, two hundred seventy-nine thousand, eight hundred sixty-eight".