895404221 has 2 divisors, whose sum is σ = 895404222. Its totient is φ = 895404220.

The previous prime is 895404199. The next prime is 895404227. The reversal of 895404221 is 122404598.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 891679321 + 3724900 = 29861^2 + 1930^2 .

It is a cyclic number.

It is not a de Polignac number, because 895404221 - 2⁶ = 895404157 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a plaindrome in base 13.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (895404227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 447702110 + 447702111.

It is an arithmetic number, because the mean of its divisors is an integer number (447702111).

Almost surely, 2^895404221 is an apocalyptic number.

It is an amenable number.

895404221 is a deficient number, since it is larger than the sum of its proper divisors (1).

895404221 is an equidigital number, since it uses as much as digits as its factorization.

895404221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23040, while the sum is 35.

The square root of 895404221 is about 29923.3056496103. The cubic root of 895404221 is about 963.8431808893.

The spelling of 895404221 in words is "eight hundred ninety-five million, four hundred four thousand, two hundred twenty-one".