72193326 has 8 divisors (see below), whose sum is σ = 144386664. Its totient is φ = 24064440.

The previous prime is 72193309. The next prime is 72193379. The reversal of 72193326 is 62339127.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

72193326 is an admirable number.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 6016105 + ... + 6016116.

It is an arithmetic number, because the mean of its divisors is an integer number (18048333).

Almost surely, 2^72193326 is an apocalyptic number.

72193326 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

72193326 is a wasteful number, since it uses less digits than its factorization.

72193326 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12032226.

The product of its digits is 13608, while the sum is 33.

The square root of 72193326 is about 8496.6655812736. The cubic root of 72193326 is about 416.3887784065.

The spelling of 72193326 in words is "seventy-two million, one hundred ninety-three thousand, three hundred twenty-six".