71219286 has 24 divisors (see below), whose sum is σ = 154743264. Its totient is φ = 23672880.

The previous prime is 71219279. The next prime is 71219327. The reversal of 71219286 is 68291217.

It is a zygodrome in base 3.

It is a self number, because there is not a number n which added to its sum of digits gives 71219286.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1216 + ... + 11996.

It is an arithmetic number, because the mean of its divisors is an integer number (6447636).

Almost surely, 2^71219286 is an apocalyptic number.

71219286 is an abundant number, since it is smaller than the sum of its proper divisors (83523978).

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

71219286 is a wasteful number, since it uses less digits than its factorization.

71219286 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11156 (or 11153 counting only the distinct ones).

The product of its digits is 12096, while the sum is 36.

The square root of 71219286 is about 8439.1519716142. The cubic root of 71219286 is about 414.5076388583.

The spelling of 71219286 in words is "seventy-one million, two hundred nineteen thousand, two hundred eighty-six".