72847580 has 24 divisors (see below), whose sum is σ = 164748192. Its totient is φ = 26897472.

The previous prime is 72847553. The next prime is 72847583. The reversal of 72847580 is 8574827.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72847583) 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 7 ways as a sum of consecutive naturals, for example, 139832 + ... + 140351.

It is an arithmetic number, because the mean of its divisors is an integer number (6864508).

Almost surely, 2^72847580 is an apocalyptic number.

It is an amenable number.

72847580 is an abundant number, since it is smaller than the sum of its proper divisors (91900612).

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

72847580 is a wasteful number, since it uses less digits than its factorization.

72847580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 280205 (or 280203 counting only the distinct ones).

The product of its (nonzero) digits is 125440, while the sum is 41.

The square root of 72847580 is about 8535.0793786584. The cubic root of 72847580 is about 417.6428425851.

The spelling of 72847580 in words is "seventy-two million, eight hundred forty-seven thousand, five hundred eighty".