698489417 has 2 divisors, whose sum is σ = 698489418. Its totient is φ = 698489416.

The previous prime is 698489413. The next prime is 698489471. The reversal of 698489417 is 714984896.

Together with next prime (698489471) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 354794896 + 343694521 = 18836^2 + 18539^2 .

It is a cyclic number.

It is not a de Polignac number, because 698489417 - 2² = 698489413 is a prime.

It is not a weakly prime, because it can be changed into another prime (698489413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 349244708 + 349244709.

It is an arithmetic number, because the mean of its divisors is an integer number (349244709).

Almost surely, 2^698489417 is an apocalyptic number.

It is an amenable number.

698489417 is a deficient number, since it is larger than the sum of its proper divisors (1).

698489417 is an equidigital number, since it uses as much as digits as its factorization.

698489417 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3483648, while the sum is 56.

The square root of 698489417 is about 26428.9503575151. The cubic root of 698489417 is about 887.2648500065.

The spelling of 698489417 in words is "six hundred ninety-eight million, four hundred eighty-nine thousand, four hundred seventeen".