698247469 has 2 divisors, whose sum is σ = 698247470. Its totient is φ = 698247468.

The previous prime is 698247467. The next prime is 698247491. The reversal of 698247469 is 964742896.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 459544969 + 238702500 = 21437^2 + 15450^2 .

It is a cyclic number.

It is not a de Polignac number, because 698247469 - 2¹ = 698247467 is a prime.

It is a super-2 number, since 2×698247469² = 975099055929811922, which contains 22 as substring.

Together with 698247467, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (698247467) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 349123734 + 349123735.

It is an arithmetic number, because the mean of its divisors is an integer number (349123735).

Almost surely, 2^698247469 is an apocalyptic number.

It is an amenable number.

698247469 is a deficient number, since it is larger than the sum of its proper divisors (1).

698247469 is an equidigital number, since it uses as much as digits as its factorization.

698247469 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5225472, while the sum is 55.

The square root of 698247469 is about 26424.3726320986. The cubic root of 698247469 is about 887.1623923590.

The spelling of 698247469 in words is "six hundred ninety-eight million, two hundred forty-seven thousand, four hundred sixty-nine".