71862222 has 32 divisors (see below), whose sum is σ = 146626560. Its totient is φ = 23474880.

The previous prime is 71862191. The next prime is 71862229. The reversal of 71862222 is 22226817.

It is a self number, because there is not a number n which added to its sum of digits gives 71862222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71862229) 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, 83229 + ... + 84087.

It is an arithmetic number, because the mean of its divisors is an integer number (4582080).

Almost surely, 2^71862222 is an apocalyptic number.

71862222 is an abundant number, since it is smaller than the sum of its proper divisors (74764338).

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

71862222 is a wasteful number, since it uses less digits than its factorization.

71862222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1128.

The product of its digits is 5376, while the sum is 30.

The square root of 71862222 is about 8477.1588400832. The cubic root of 71862222 is about 415.7512342511.

The spelling of 71862222 in words is "seventy-one million, eight hundred sixty-two thousand, two hundred twenty-two".