895115989 has 2 divisors, whose sum is σ = 895115990. Its totient is φ = 895115988.

The previous prime is 895115971. The next prime is 895116017. The reversal of 895115989 is 989511598.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 624250225 + 270865764 = 24985^2 + 16458^2 .

It is a cyclic number.

It is not a de Polignac number, because 895115989 - 2¹⁵ = 895083221 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (895115929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 447557994 + 447557995.

It is an arithmetic number, because the mean of its divisors is an integer number (447557995).

Almost surely, 2^895115989 is an apocalyptic number.

It is an amenable number.

895115989 is a deficient number, since it is larger than the sum of its proper divisors (1).

895115989 is an equidigital number, since it uses as much as digits as its factorization.

895115989 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1166400, while the sum is 55.

The square root of 895115989 is about 29918.4890828397. The cubic root of 895115989 is about 963.7397489213.

The spelling of 895115989 in words is "eight hundred ninety-five million, one hundred fifteen thousand, nine hundred eighty-nine".