698643353 has 4 divisors (see below), whose sum is σ = 699048228. Its totient is φ = 698238480.

The previous prime is 698643349. The next prime is 698643389. The reversal of 698643353 is 353346896.

698643353 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 510624409 + 188018944 = 22597^2 + 13712^2 .

It is a cyclic number.

It is not a de Polignac number, because 698643353 - 2² = 698643349 is a prime.

It is a super-3 number, since 3×698643353³ (a number of 28 digits) contains 333 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 698643298 and 698643307.

It is not an unprimeable number, because it can be changed into a prime (698643343) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 199838 + ... + 203303.

It is an arithmetic number, because the mean of its divisors is an integer number (174762057).

Almost surely, 2^698643353 is an apocalyptic number.

It is an amenable number.

698643353 is a deficient number, since it is larger than the sum of its proper divisors (404875).

698643353 is a wasteful number, since it uses less digits than its factorization.

698643353 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 404874.

The product of its digits is 1399680, while the sum is 47.

The square root of 698643353 is about 26431.8624580259. The cubic root of 698643353 is about 887.3300249236.

The spelling of 698643353 in words is "six hundred ninety-eight million, six hundred forty-three thousand, three hundred fifty-three".