72947548 has 12 divisors (see below), whose sum is σ = 127832152. Its totient is φ = 36424080.

The previous prime is 72947543. The next prime is 72947549. The reversal of 72947548 is 84574927.

It is a junction number, because it is equal to n+sod(n) for n = 72947498 and 72947507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72947543) 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, 9018 + ... + 15073.

Almost surely, 2^72947548 is an apocalyptic number.

It is an amenable number.

72947548 is a deficient number, since it is larger than the sum of its proper divisors (54884604).

72947548 is a wasteful number, since it uses less digits than its factorization.

72947548 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24852 (or 24850 counting only the distinct ones).

The product of its digits is 564480, while the sum is 46.

The square root of 72947548 is about 8540.9336726145. The cubic root of 72947548 is about 417.8337976181.

The spelling of 72947548 in words is "seventy-two million, nine hundred forty-seven thousand, five hundred forty-eight".