72941972 has 12 divisors (see below), whose sum is σ = 128066400. Its totient is φ = 36351576.

The previous prime is 72941971. The next prime is 72941987. The reversal of 72941972 is 27914927.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72941971) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28472 + ... + 30927.

It is an arithmetic number, because the mean of its divisors is an integer number (10672200).

Almost surely, 2^72941972 is an apocalyptic number.

It is an amenable number.

72941972 is a deficient number, since it is larger than the sum of its proper divisors (55124428).

72941972 is a wasteful number, since it uses less digits than its factorization.

72941972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59710 (or 59708 counting only the distinct ones).

The product of its digits is 63504, while the sum is 41.

The square root of 72941972 is about 8540.6072383643. The cubic root of 72941972 is about 417.8231511527.

The spelling of 72941972 in words is "seventy-two million, nine hundred forty-one thousand, nine hundred seventy-two".