727895281 has 2 divisors, whose sum is σ = 727895282. Its totient is φ = 727895280.

The previous prime is 727895257. The next prime is 727895291. The reversal of 727895281 is 182598727.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 569538225 + 158357056 = 23865^2 + 12584^2 .

It is a cyclic number.

It is not a de Polignac number, because 727895281 - 2¹³ = 727887089 is a prime.

It is a super-2 number, since 2×727895281² = 1059663080204137922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (727895291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 363947640 + 363947641.

It is an arithmetic number, because the mean of its divisors is an integer number (363947641).

Almost surely, 2^727895281 is an apocalyptic number.

It is an amenable number.

727895281 is a deficient number, since it is larger than the sum of its proper divisors (1).

727895281 is an equidigital number, since it uses as much as digits as its factorization.

727895281 is an evil number, because the sum of its binary digits is even.

The product of its digits is 564480, while the sum is 49.

The square root of 727895281 is about 26979.5344844940. The cubic root of 727895281 is about 899.5451532935.

The spelling of 727895281 in words is "seven hundred twenty-seven million, eight hundred ninety-five thousand, two hundred eighty-one".