727881373 has 2 divisors, whose sum is σ = 727881374. Its totient is φ = 727881372.

The previous prime is 727881337. The next prime is 727881389. The reversal of 727881373 is 373188727.

Together with previous prime (727881337) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 714065284 + 13816089 = 26722^2 + 3717^2 .

It is a cyclic number.

It is not a de Polignac number, because 727881373 - 2²¹ = 725784221 is a prime.

It is a super-2 number, since 2×727881373² = 1059622586320730258, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (727881073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 363940686 + 363940687.

It is an arithmetic number, because the mean of its divisors is an integer number (363940687).

Almost surely, 2^727881373 is an apocalyptic number.

It is an amenable number.

727881373 is a deficient number, since it is larger than the sum of its proper divisors (1).

727881373 is an equidigital number, since it uses as much as digits as its factorization.

727881373 is an evil number, because the sum of its binary digits is even.

The product of its digits is 395136, while the sum is 46.

The square root of 727881373 is about 26979.2767323366. The cubic root of 727881373 is about 899.5394240107.

The spelling of 727881373 in words is "seven hundred twenty-seven million, eight hundred eighty-one thousand, three hundred seventy-three".