698798889 has 12 divisors (see below), whose sum is σ = 1068751476. Its totient is φ = 438461952.

The previous prime is 698798887. The next prime is 698798911. The reversal of 698798889 is 988897896.

698798889 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 265950864 + 432848025 = 16308^2 + 20805^2 .

It is not a de Polignac number, because 698798889 - 2¹ = 698798887 is a prime.

It is not an unprimeable number, because it can be changed into a prime (698798887) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2283504 + ... + 2283809.

It is an arithmetic number, because the mean of its divisors is an integer number (89062623).

Almost surely, 2^698798889 is an apocalyptic number.

It is an amenable number.

698798889 is a deficient number, since it is larger than the sum of its proper divisors (369952587).

698798889 is a wasteful number, since it uses less digits than its factorization.

698798889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4567336 (or 4567333 counting only the distinct ones).

The product of its digits is 125411328, while the sum is 72.

The square root of 698798889 is about 26434.8045008848. The cubic root of 698798889 is about 887.3958675417.

The spelling of 698798889 in words is "six hundred ninety-eight million, seven hundred ninety-eight thousand, eight hundred eighty-nine".