698321197 has 6 divisors (see below), whose sum is σ = 812332878. Its totient is φ = 598560984.

The previous prime is 698321149. The next prime is 698321203. The reversal of 698321197 is 791123896.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 655667236 + 42653961 = 25606^2 + 6531^2 .

It is a de Polignac number, because none of the positive numbers 2^k-698321197 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (698321137) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7125678 + ... + 7125775.

It is an arithmetic number, because the mean of its divisors is an integer number (135388813).

Almost surely, 2^698321197 is an apocalyptic number.

It is an amenable number.

698321197 is a deficient number, since it is larger than the sum of its proper divisors (114011681).

698321197 is a wasteful number, since it uses less digits than its factorization.

698321197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14251467 (or 14251460 counting only the distinct ones).

The product of its digits is 163296, while the sum is 46.

The square root of 698321197 is about 26425.7676709684. The cubic root of 698321197 is about 887.1936164401.

The spelling of 698321197 in words is "six hundred ninety-eight million, three hundred twenty-one thousand, one hundred ninety-seven".