72727748 has 12 divisors (see below), whose sum is σ = 132807360. Its totient is φ = 34782792.

The previous prime is 72727747. The next prime is 72727789. The reversal of 72727748 is 84772727.

It is a junction number, because it is equal to n+sod(n) for n = 72727699 and 72727708.

It is not an unprimeable number, because it can be changed into a prime (72727747) 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, 395168 + ... + 395351.

It is an arithmetic number, because the mean of its divisors is an integer number (11067280).

Almost surely, 2^72727748 is an apocalyptic number.

It is an amenable number.

72727748 is a deficient number, since it is larger than the sum of its proper divisors (60079612).

72727748 is a wasteful number, since it uses less digits than its factorization.

72727748 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 790546 (or 790544 counting only the distinct ones).

The product of its digits is 307328, while the sum is 44.

The square root of 72727748 is about 8528.0565195125. The cubic root of 72727748 is about 417.4137137469.

The spelling of 72727748 in words is "seventy-two million, seven hundred twenty-seven thousand, seven hundred forty-eight".