72788326 has 8 divisors (see below), whose sum is σ = 117581184. Its totient is φ = 33594600.

The previous prime is 72788321. The next prime is 72788329. The reversal of 72788326 is 62388727.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72788321) 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 3 ways as a sum of consecutive naturals, for example, 1399750 + ... + 1399801.

It is an arithmetic number, because the mean of its divisors is an integer number (14697648).

Almost surely, 2^72788326 is an apocalyptic number.

72788326 is a deficient number, since it is larger than the sum of its proper divisors (44792858).

72788326 is a wasteful number, since it uses less digits than its factorization.

72788326 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2799566.

The product of its digits is 225792, while the sum is 43.

The square root of 72788326 is about 8531.6074687013. The cubic root of 72788326 is about 417.5295753966.

The spelling of 72788326 in words is "seventy-two million, seven hundred eighty-eight thousand, three hundred twenty-six".