8465884221 has 16 divisors (see below), whose sum is σ = 11627074368. Its totient is φ = 5475830400.

The previous prime is 8465884181. The next prime is 8465884249. The reversal of 8465884221 is 1224885648.

It is not a de Polignac number, because 8465884221 - 2⁹ = 8465883709 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8465884261) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 167871 + ... + 212396.

It is an arithmetic number, because the mean of its divisors is an integer number (726692148).

Almost surely, 2^8465884221 is an apocalyptic number.

It is an amenable number.

8465884221 is a deficient number, since it is larger than the sum of its proper divisors (3161190147).

8465884221 is a wasteful number, since it uses less digits than its factorization.

8465884221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 380492.

The product of its digits is 983040, while the sum is 48.

The square root of 8465884221 is about 92010.2397616700. The cubic root of 8465884221 is about 2038.0935204235.

The spelling of 8465884221 in words is "eight billion, four hundred sixty-five million, eight hundred eighty-four thousand, two hundred twenty-one".