895813 has 2 divisors, whose sum is σ = 895814. Its totient is φ = 895812.

The previous prime is 895801. The next prime is 895823. The reversal of 895813 is 318598.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 804609 + 91204 = 897^2 + 302^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-895813 is a prime.

895813 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (895823) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 447906 + 447907.

It is an arithmetic number, because the mean of its divisors is an integer number (447907).

2⁸⁹⁵⁸¹³ is an apocalyptic number.

It is an amenable number.

895813 is a deficient number, since it is larger than the sum of its proper divisors (1).

895813 is an equidigital number, since it uses as much as digits as its factorization.

895813 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8640, while the sum is 34.

The square root of 895813 is about 946.4739827380. The cubic root of 895813 is about 96.3989833057.

The spelling of 895813 in words is "eight hundred ninety-five thousand, eight hundred thirteen".