72012196 has 9 divisors (see below), whose sum is σ = 126051051. Its totient is φ = 35997612.

The previous prime is 72012181. The next prime is 72012217. The reversal of 72012196 is 69121027.

It is a happy number.

The square root of 72012196 is 8486.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 14851 + ... + 19093.

Almost surely, 2^72012196 is an apocalyptic number.

72012196 is the 8486-th square number.

It is an amenable number.

72012196 is a deficient number, since it is larger than the sum of its proper divisors (54038855).

72012196 is an frugal number, since it uses more digits than its factorization.

72012196 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8490 (or 4245 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 28.

The cubic root of 72012196 is about 416.0402528234.

The spelling of 72012196 in words is "seventy-two million, twelve thousand, one hundred ninety-six".