72903580 has 24 divisors (see below), whose sum is σ = 156356928. Its totient is φ = 28540608.

The previous prime is 72903577. The next prime is 72903587. The reversal of 72903580 is 8530927.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72903587) 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, 37839 + ... + 39718.

It is an arithmetic number, because the mean of its divisors is an integer number (6514872).

Almost surely, 2^72903580 is an apocalyptic number.

It is an amenable number.

72903580 is an abundant number, since it is smaller than the sum of its proper divisors (83453348).

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

72903580 is a wasteful number, since it uses less digits than its factorization.

72903580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77613 (or 77611 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 34.

The square root of 72903580 is about 8538.3593271776. The cubic root of 72903580 is about 417.7498331387.

The spelling of 72903580 in words is "seventy-two million, nine hundred three thousand, five hundred eighty".