71219308 has 12 divisors (see below), whose sum is σ = 124707240. Its totient is φ = 35588672.

The previous prime is 71219279. The next prime is 71219327. The reversal of 71219308 is 80391217.

It is a self number, because there is not a number n which added to its sum of digits gives 71219308.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4335 + ... + 12697.

It is an arithmetic number, because the mean of its divisors is an integer number (10392270).

Almost surely, 2^71219308 is an apocalyptic number.

It is an amenable number.

71219308 is a deficient number, since it is larger than the sum of its proper divisors (53487932).

71219308 is a wasteful number, since it uses less digits than its factorization.

71219308 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10496 (or 10494 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 31.

The square root of 71219308 is about 8439.1532750626. The cubic root of 71219308 is about 414.5076815394.

The spelling of 71219308 in words is "seventy-one million, two hundred nineteen thousand, three hundred eight".