8712222 has 16 divisors (see below), whose sum is σ = 18341760. Its totient is φ = 2751192.

The previous prime is 8712181. The next prime is 8712227. The reversal of 8712222 is 2222178.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 8712192 and 8712201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8712227) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38098 + ... + 38325.

It is an arithmetic number, because the mean of its divisors is an integer number (1146360).

Almost surely, 2^8712222 is an apocalyptic number.

8712222 is an abundant number, since it is smaller than the sum of its proper divisors (9629538).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8712222 is a wasteful number, since it uses less digits than its factorization.

8712222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76447.

The product of its digits is 896, while the sum is 24.

The square root of 8712222 is about 2951.6473366580. The cubic root of 8712222 is about 205.7672773260.

The spelling of 8712222 in words is "eight million, seven hundred twelve thousand, two hundred twenty-two".