72747548 has 12 divisors (see below), whose sum is σ = 128238432. Its totient is φ = 36108000.

The previous prime is 72747547. The next prime is 72747557. The reversal of 72747548 is 84574727.

It is a junction number, because it is equal to n+sod(n) for n = 72747499 and 72747508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72747547) 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, 65828 + ... + 66923.

It is an arithmetic number, because the mean of its divisors is an integer number (10686536).

Almost surely, 2^72747548 is an apocalyptic number.

It is an amenable number.

72747548 is a deficient number, since it is larger than the sum of its proper divisors (55490884).

72747548 is a wasteful number, since it uses less digits than its factorization.

72747548 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132892 (or 132890 counting only the distinct ones).

The product of its digits is 439040, while the sum is 44.

The square root of 72747548 is about 8529.2173146192. The cubic root of 72747548 is about 417.4515903568.

The spelling of 72747548 in words is "seventy-two million, seven hundred forty-seven thousand, five hundred forty-eight".