698464589 has 2 divisors, whose sum is σ = 698464590. Its totient is φ = 698464588.

The previous prime is 698464573. The next prime is 698464631. The reversal of 698464589 is 985464896.

698464589 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 470152489 + 228312100 = 21683^2 + 15110^2 .

It is a cyclic number.

It is not a de Polignac number, because 698464589 - 2⁴ = 698464573 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (698464489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 349232294 + 349232295.

It is an arithmetic number, because the mean of its divisors is an integer number (349232295).

Almost surely, 2^698464589 is an apocalyptic number.

It is an amenable number.

698464589 is a deficient number, since it is larger than the sum of its proper divisors (1).

698464589 is an equidigital number, since it uses as much as digits as its factorization.

698464589 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 14929920, while the sum is 59.

The square root of 698464589 is about 26428.4806411568. The cubic root of 698464589 is about 887.2543371902.

The spelling of 698464589 in words is "six hundred ninety-eight million, four hundred sixty-four thousand, five hundred eighty-nine".