71209196 has 24 divisors (see below), whose sum is σ = 130727520. Its totient is φ = 33875072.

The previous prime is 71209163. The next prime is 71209199. The reversal of 71209196 is 69190217.

It is not an unprimeable number, because it can be changed into a prime (71209199) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16160 + ... + 20088.

It is an arithmetic number, because the mean of its divisors is an integer number (5446980).

Almost surely, 2^71209196 is an apocalyptic number.

It is an amenable number.

71209196 is a deficient number, since it is larger than the sum of its proper divisors (59518324).

71209196 is a wasteful number, since it uses less digits than its factorization.

71209196 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4153 (or 4151 counting only the distinct ones).

The product of its (nonzero) digits is 6804, while the sum is 35.

The square root of 71209196 is about 8438.5541415577. The cubic root of 71209196 is about 414.4880627956.

The spelling of 71209196 in words is "seventy-one million, two hundred nine thousand, one hundred ninety-six".