729698397 has 8 divisors (see below), whose sum is σ = 973270560. Its totient is φ = 486295920.

The previous prime is 729698383. The next prime is 729698399. The reversal of 729698397 is 793896927.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 729698397 - 2⁴ = 729698381 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 729698397.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (729698399) 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 7 ways as a sum of consecutive naturals, for example, 32022 + ... + 49847.

It is an arithmetic number, because the mean of its divisors is an integer number (121658820).

Almost surely, 2^729698397 is an apocalyptic number.

It is an amenable number.

729698397 is a deficient number, since it is larger than the sum of its proper divisors (243572163).

729698397 is a wasteful number, since it uses less digits than its factorization.

729698397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84843.

The product of its digits is 10287648, while the sum is 60.

The square root of 729698397 is about 27012.9301816741. The cubic root of 729698397 is about 900.2873144413.

The spelling of 729698397 in words is "seven hundred twenty-nine million, six hundred ninety-eight thousand, three hundred ninety-seven".