852667489 has 2 divisors, whose sum is σ = 852667490. Its totient is φ = 852667488.

The previous prime is 852667481. The next prime is 852667513. The reversal of 852667489 is 984766258.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 828461089 + 24206400 = 28783^2 + 4920^2 .

It is a cyclic number.

It is not a de Polignac number, because 852667489 - 2³ = 852667481 is a prime.

It is not a weakly prime, because it can be changed into another prime (852667481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 426333744 + 426333745.

It is an arithmetic number, because the mean of its divisors is an integer number (426333745).

Almost surely, 2^852667489 is an apocalyptic number.

It is an amenable number.

852667489 is a deficient number, since it is larger than the sum of its proper divisors (1).

852667489 is an equidigital number, since it uses as much as digits as its factorization.

852667489 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5806080, while the sum is 55.

The square root of 852667489 is about 29200.4706982610. The cubic root of 852667489 is about 948.2581152065.

The spelling of 852667489 in words is "eight hundred fifty-two million, six hundred sixty-seven thousand, four hundred eighty-nine".