72798726 has 256 divisors, whose sum is σ = 222953472. Its totient is φ = 15206400.

The previous prime is 72798697. The next prime is 72798727. The reversal of 72798726 is 62789727.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72798727) by changing a digit.

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 127 ways as a sum of consecutive naturals, for example, 2348331 + ... + 2348361.

It is an arithmetic number, because the mean of its divisors is an integer number (870912).

Almost surely, 2^72798726 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 72798726, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (111476736).

72798726 is an abundant number, since it is smaller than the sum of its proper divisors (150154746).

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

72798726 is a wasteful number, since it uses less digits than its factorization.

72798726 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107.

The product of its digits is 592704, while the sum is 48.

The square root of 72798726 is about 8532.2169452025. The cubic root of 72798726 is about 417.5494599991.

The spelling of 72798726 in words is "seventy-two million, seven hundred ninety-eight thousand, seven hundred twenty-six".