698563321 has 4 divisors (see below), whose sum is σ = 699091072. Its totient is φ = 698035572.

The previous prime is 698563279. The next prime is 698563343. The reversal of 698563321 is 123365896.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 698563321 - 2⁷ = 698563193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (698563421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 261885 + ... + 264538.

It is an arithmetic number, because the mean of its divisors is an integer number (174772768).

Almost surely, 2^698563321 is an apocalyptic number.

It is an amenable number.

698563321 is a deficient number, since it is larger than the sum of its proper divisors (527751).

698563321 is a wasteful number, since it uses less digits than its factorization.

698563321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 527750.

The product of its digits is 233280, while the sum is 43.

The square root of 698563321 is about 26430.3484842709. The cubic root of 698563321 is about 887.2961413939.

The spelling of 698563321 in words is "six hundred ninety-eight million, five hundred sixty-three thousand, three hundred twenty-one".