8902921809 has 16 divisors (see below), whose sum is σ = 12053176832. Its totient is φ = 5844244608.

The previous prime is 8902921801. The next prime is 8902921813. The reversal of 8902921809 is 9081292098.

It is not a de Polignac number, because 8902921809 - 2³ = 8902921801 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8902921801) 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, 99447 + ... + 166419.

It is an arithmetic number, because the mean of its divisors is an integer number (753323552).

Almost surely, 2^8902921809 is an apocalyptic number.

It is an amenable number.

8902921809 is a deficient number, since it is larger than the sum of its proper divisors (3150255023).

8902921809 is a wasteful number, since it uses less digits than its factorization.

8902921809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67656.

The product of its (nonzero) digits is 186624, while the sum is 48.

The square root of 8902921809 is about 94355.2956065530. The cubic root of 8902921809 is about 2072.5778528010.

The spelling of 8902921809 in words is "eight billion, nine hundred two million, nine hundred twenty-one thousand, eight hundred nine".