895220999 has 4 divisors (see below), whose sum is σ = 916040136. Its totient is φ = 874401864.

The previous prime is 895220987. The next prime is 895221017. The reversal of 895220999 is 999022598.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 895220999 - 2¹⁶ = 895155463 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 895220999.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (895220959) 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 3 ways as a sum of consecutive naturals, for example, 10409504 + ... + 10409589.

It is an arithmetic number, because the mean of its divisors is an integer number (229010034).

Almost surely, 2^895220999 is an apocalyptic number.

895220999 is a deficient number, since it is larger than the sum of its proper divisors (20819137).

895220999 is a wasteful number, since it uses less digits than its factorization.

895220999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20819136.

The product of its (nonzero) digits is 1049760, while the sum is 53.

The square root of 895220999 is about 29920.2439662513. The cubic root of 895220999 is about 963.7774342995. Note that the first 3 decimals are identical.

The spelling of 895220999 in words is "eight hundred ninety-five million, two hundred twenty thousand, nine hundred ninety-nine".