8712474221 has 16 divisors (see below), whose sum is σ = 10015982208. Its totient is φ = 7501032000.

The previous prime is 8712474163. The next prime is 8712474223. The reversal of 8712474221 is 1224742178.

It is a happy number.

It is not a de Polignac number, because 8712474221 - 2¹⁰ = 8712473197 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 (8712474223) 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, 144926 + ... + 196031.

It is an arithmetic number, because the mean of its divisors is an integer number (625998888).

Almost surely, 2^8712474221 is an apocalyptic number.

It is an amenable number.

8712474221 is a deficient number, since it is larger than the sum of its proper divisors (1303507987).

8712474221 is a wasteful number, since it uses less digits than its factorization.

8712474221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 341092.

The product of its digits is 50176, while the sum is 38.

The square root of 8712474221 is about 93340.6354220926. The cubic root of 8712474221 is about 2057.6926297820.

The spelling of 8712474221 in words is "eight billion, seven hundred twelve million, four hundred seventy-four thousand, two hundred twenty-one".