72927472 has 20 divisors (see below), whose sum is σ = 148734280. Its totient is φ = 34544448.

The previous prime is 72927461. The next prime is 72927473. The reversal of 72927472 is 27472927.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72927473) 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 3 ways as a sum of consecutive naturals, for example, 119643 + ... + 120250.

It is an arithmetic number, because the mean of its divisors is an integer number (7436714).

Almost surely, 2^72927472 is an apocalyptic number.

It is an amenable number.

72927472 is an abundant number, since it is smaller than the sum of its proper divisors (75806808).

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

72927472 is a wasteful number, since it uses less digits than its factorization.

72927472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239920 (or 239914 counting only the distinct ones).

The product of its digits is 98784, while the sum is 40.

The square root of 72927472 is about 8539.7583103973. The cubic root of 72927472 is about 417.7954632203.

The spelling of 72927472 in words is "seventy-two million, nine hundred twenty-seven thousand, four hundred seventy-two".