117727487 has 2 divisors, whose sum is σ = 117727488. Its totient is φ = 117727486.

The previous prime is 117727483. The next prime is 117727541. The reversal of 117727487 is 784727711.

It is a weak prime.

It is an emirp because it is prime and its reverse (784727711) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 117727487 - 2² = 117727483 is a prime.

It is a super-2 number, since 2×117727487² = 27719522390670338, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (117727481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58863743 + 58863744.

It is an arithmetic number, because the mean of its divisors is an integer number (58863744).

Almost surely, 2^117727487 is an apocalyptic number.

117727487 is a deficient number, since it is larger than the sum of its proper divisors (1).

117727487 is an equidigital number, since it uses as much as digits as its factorization.

117727487 is an evil number, because the sum of its binary digits is even.

The product of its digits is 153664, while the sum is 44.

The square root of 117727487 is about 10850.2298132344. The cubic root of 117727487 is about 490.1089400983.

The spelling of 117727487 in words is "one hundred seventeen million, seven hundred twenty-seven thousand, four hundred eighty-seven".