724198097 has 6 divisors (see below), whose sum is σ = 842434578. Its totient is φ = 620741184.

The previous prime is 724198087. The next prime is 724198103. The reversal of 724198097 is 790891427.

It can be written as a sum of positive squares in only one way, i.e., 380874256 + 343323841 = 19516^2 + 18529^2 .

It is not a de Polignac number, because 724198097 - 2¹⁰ = 724197073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (724198067) 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, 7389728 + ... + 7389825.

It is an arithmetic number, because the mean of its divisors is an integer number (140405763).

Almost surely, 2^724198097 is an apocalyptic number.

It is an amenable number.

724198097 is a deficient number, since it is larger than the sum of its proper divisors (118236481).

724198097 is a wasteful number, since it uses less digits than its factorization.

724198097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14779567 (or 14779560 counting only the distinct ones).

The product of its (nonzero) digits is 254016, while the sum is 47.

The square root of 724198097 is about 26910.9289508928. The cubic root of 724198097 is about 898.0195534620.

The spelling of 724198097 in words is "seven hundred twenty-four million, one hundred ninety-eight thousand, ninety-seven".