Search a number
-
+
487527769 is a prime number
BaseRepresentation
bin11101000011110…
…001010101011001
31020222100222101001
4131003301111121
51444301342034
6120213225001
715036626521
oct3503612531
91228328331
10487527769
11230218913
12117332161
137a009191
1448a6a681
152cc02a14
hex1d0f1559

487527769 has 2 divisors, whose sum is σ = 487527770. Its totient is φ = 487527768.

The previous prime is 487527767. The next prime is 487527827. The reversal of 487527769 is 967725784.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 487526400 + 1369 = 22080^2 + 37^2 .

It is a cyclic number.

It is not a de Polignac number, because 487527769 - 21 = 487527767 is a prime.

It is a super-2 number, since 2×4875277692 = 475366651092234722, which contains 22 as substring.

Together with 487527767, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (487527763) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 243763884 + 243763885.

It is an arithmetic number, because the mean of its divisors is an integer number (243763885).

Almost surely, 2487527769 is an apocalyptic number.

It is an amenable number.

487527769 is a deficient number, since it is larger than the sum of its proper divisors (1).

487527769 is an equidigital number, since it uses as much as digits as its factorization.

487527769 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5927040, while the sum is 55.

The square root of 487527769 is about 22080.0310008840. The cubic root of 487527769 is about 787.0454016551.

The spelling of 487527769 in words is "four hundred eighty-seven million, five hundred twenty-seven thousand, seven hundred sixty-nine".