895540221 has 6 divisors (see below), whose sum is σ = 1293558110. Its totient is φ = 597026808.

The previous prime is 895540201. The next prime is 895540223. The reversal of 895540221 is 122045598.

895540221 is a `hidden beast` number, since 8 + 95 + 540 + 2 + 21 = 666.

It can be written as a sum of positive squares in only one way, i.e., 895505625 + 34596 = 29925^2 + 186^2 .

It is not a de Polignac number, because 895540221 - 2⁹ = 895539709 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (895540223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 49752226 + ... + 49752243.

Almost surely, 2^895540221 is an apocalyptic number.

It is an amenable number.

895540221 is a deficient number, since it is larger than the sum of its proper divisors (398017889).

895540221 is a wasteful number, since it uses less digits than its factorization.

895540221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99504475 (or 99504472 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 36.

The square root of 895540221 is about 29925.5780395300. The cubic root of 895540221 is about 963.8919767417.

The spelling of 895540221 in words is "eight hundred ninety-five million, five hundred forty thousand, two hundred twenty-one".