727252681 has 2 divisors, whose sum is σ = 727252682. Its totient is φ = 727252680.

The previous prime is 727252651. The next prime is 727252717. The reversal of 727252681 is 186252727.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 680740281 + 46512400 = 26091^2 + 6820^2 .

It is an emirp because it is prime and its reverse (186252727) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 727252681 - 2²⁵ = 693698249 is a prime.

It is a super-2 number, since 2×727252681² = 1057792924043375522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (727252601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 363626340 + 363626341.

It is an arithmetic number, because the mean of its divisors is an integer number (363626341).

Almost surely, 2^727252681 is an apocalyptic number.

It is an amenable number.

727252681 is a deficient number, since it is larger than the sum of its proper divisors (1).

727252681 is an equidigital number, since it uses as much as digits as its factorization.

727252681 is an evil number, because the sum of its binary digits is even.

The product of its digits is 94080, while the sum is 40.

The square root of 727252681 is about 26967.6228281248. The cubic root of 727252681 is about 899.2803634178.

The spelling of 727252681 in words is "seven hundred twenty-seven million, two hundred fifty-two thousand, six hundred eighty-one".