727288987 has 2 divisors, whose sum is σ = 727288988. Its totient is φ = 727288986.

The previous prime is 727288967. The next prime is 727289009. The reversal of 727288987 is 789882727.

It is a weak prime.

It is an emirp because it is prime and its reverse (789882727) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 727288987 - 2²³ = 718900379 is a prime.

It is a super-2 number, since 2×727288987² = 1057898541222972338, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (727288967) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 363644493 + 363644494.

It is an arithmetic number, because the mean of its divisors is an integer number (363644494).

Almost surely, 2^727288987 is an apocalyptic number.

727288987 is a deficient number, since it is larger than the sum of its proper divisors (1).

727288987 is an equidigital number, since it uses as much as digits as its factorization.

727288987 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6322176, while the sum is 58.

The square root of 727288987 is about 26968.2959602567. The cubic root of 727288987 is about 899.2953278313.

The spelling of 727288987 in words is "seven hundred twenty-seven million, two hundred eighty-eight thousand, nine hundred eighty-seven".