698545853 has 2 divisors, whose sum is σ = 698545854. Its totient is φ = 698545852.

The previous prime is 698545769. The next prime is 698545867. The reversal of 698545853 is 358545896.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 391525369 + 307020484 = 19787^2 + 17522^2 .

It is a cyclic number.

It is not a de Polignac number, because 698545853 - 2¹² = 698541757 is a prime.

It is a super-4 number, since 4×698545853⁴ (a number of 36 digits) contains 4444 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 698545795 and 698545804.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (698544853) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 349272926 + 349272927.

It is an arithmetic number, because the mean of its divisors is an integer number (349272927).

Almost surely, 2^698545853 is an apocalyptic number.

It is an amenable number.

698545853 is a deficient number, since it is larger than the sum of its proper divisors (1).

698545853 is an equidigital number, since it uses as much as digits as its factorization.

698545853 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5184000, while the sum is 53.

The square root of 698545853 is about 26430.0180287491. The cubic root of 698545853 is about 887.2887455394.

The spelling of 698545853 in words is "six hundred ninety-eight million, five hundred forty-five thousand, eight hundred fifty-three".