727887089 has 2 divisors, whose sum is σ = 727887090. Its totient is φ = 727887088.

The previous prime is 727887053. The next prime is 727887091. The reversal of 727887089 is 980788727.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 701826064 + 26061025 = 26492^2 + 5105^2 .

It is a cyclic number.

It is not a de Polignac number, because 727887089 - 2⁸ = 727886833 is a prime.

It is a super-2 number, since 2×727887089² = 1059639228665787842, which contains 22 as substring.

Together with 727887091, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (727887029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 363943544 + 363943545.

It is an arithmetic number, because the mean of its divisors is an integer number (363943545).

Almost surely, 2^727887089 is an apocalyptic number.

It is an amenable number.

727887089 is a deficient number, since it is larger than the sum of its proper divisors (1).

727887089 is an equidigital number, since it uses as much as digits as its factorization.

727887089 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3161088, while the sum is 56.

The square root of 727887089 is about 26979.3826652872. The cubic root of 727887089 is about 899.5417786773.

The spelling of 727887089 in words is "seven hundred twenty-seven million, eight hundred eighty-seven thousand, eighty-nine".