98729809369 has 3 divisors (see below), whose sum is σ = 98730123583. Its totient is φ = 98729495156.

The previous prime is 98729809357. The next prime is 98729809463. The reversal of 98729809369 is 96390892789.

The square root of 98729809369 is 314213.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 74701089225 + 24028720144 = 273315^2 + 155012^2 .

It is not a de Polignac number, because 98729809369 - 2⁵ = 98729809337 is a prime.

It is a super-2 number, since 2×98729809369² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 98729809298 and 98729809307.

It is not an unprimeable number, because it can be changed into a prime (98729809319) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 157107 + ... + 471319.

Almost surely, 2^98729809369 is an apocalyptic number.

98729809369 is the 314213-rd square number.

98729809369 is the 157107-th centered octagonal number.

It is an amenable number.

98729809369 is a deficient number, since it is larger than the sum of its proper divisors (314214).

98729809369 is an frugal number, since it uses more digits than its factorization.

98729809369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 628426 (or 314213 counting only the distinct ones).

The product of its (nonzero) digits is 105815808, while the sum is 70.

The spelling of 98729809369 in words is "ninety-eight billion, seven hundred twenty-nine million, eight hundred nine thousand, three hundred sixty-nine".