8221432923 has 48 divisors (see below), whose sum is σ = 13417747200. Its totient is φ = 4805115840.

The previous prime is 8221432913. The next prime is 8221432931. The reversal of 8221432923 is 3292341228.

It is not a de Polignac number, because 8221432923 - 2¹⁰ = 8221431899 is a prime.

It is not an unprimeable number, because it can be changed into a prime (8221432913) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4153348 + ... + 4155326.

It is an arithmetic number, because the mean of its divisors is an integer number (279536400).

Almost surely, 2^8221432923 is an apocalyptic number.

8221432923 is a deficient number, since it is larger than the sum of its proper divisors (5196314277).

8221432923 is a wasteful number, since it uses less digits than its factorization.

8221432923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3472 (or 3469 counting only the distinct ones).

The product of its digits is 41472, while the sum is 36.

The square root of 8221432923 is about 90672.1176713106. The cubic root of 8221432923 is about 2018.2850623727.

It can be divided in two parts, 8221 and 432923, that added together give a palindrome (441144).

The spelling of 8221432923 in words is "eight billion, two hundred twenty-one million, four hundred thirty-two thousand, nine hundred twenty-three".