727364681 has 4 divisors (see below), whose sum is σ = 727426512. Its totient is φ = 727302852.

The previous prime is 727364657. The next prime is 727364699. The reversal of 727364681 is 186463727.

727364681 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 727364681 - 2²² = 723170377 is a prime.

It is a super-2 number, since 2×727364681² = 1058118758332463522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (727364881) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7211 + ... + 38816.

It is an arithmetic number, because the mean of its divisors is an integer number (181856628).

Almost surely, 2^727364681 is an apocalyptic number.

It is an amenable number.

727364681 is a deficient number, since it is larger than the sum of its proper divisors (61831).

727364681 is a wasteful number, since it uses less digits than its factorization.

727364681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61830.

The product of its digits is 338688, while the sum is 44.

The square root of 727364681 is about 26969.6993123765. The cubic root of 727364681 is about 899.3265253793.

It can be divided in two parts, 7273646 and 81, that added together give a palindrome (7273727).

The spelling of 727364681 in words is "seven hundred twenty-seven million, three hundred sixty-four thousand, six hundred eighty-one".