895009 has 2 divisors, whose sum is σ = 895010. Its totient is φ = 895008.

The previous prime is 895007. The next prime is 895039. The reversal of 895009 is 900598.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 616225 + 278784 = 785^2 + 528^2 .

It is a cyclic number.

It is not a de Polignac number, because 895009 - 2¹ = 895007 is a prime.

It is a super-2 number, since 2×895009² = 1602082220162, which contains 22 as substring.

Together with 895007, it forms a pair of twin primes.

It is a nialpdrome in base 16.

It is not a weakly prime, because it can be changed into another prime (895003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 447504 + 447505.

It is an arithmetic number, because the mean of its divisors is an integer number (447505).

2⁸⁹⁵⁰⁰⁹ is an apocalyptic number.

It is an amenable number.

895009 is a deficient number, since it is larger than the sum of its proper divisors (1).

895009 is an equidigital number, since it uses as much as digits as its factorization.

895009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3240, while the sum is 31.

The square root of 895009 is about 946.0491530571. The cubic root of 895009 is about 96.3701350300.

The spelling of 895009 in words is "eight hundred ninety-five thousand, nine".