72481785 has 16 divisors (see below), whose sum is σ = 116088000. Its totient is φ = 38617920.

The previous prime is 72481777. The next prime is 72481807. The reversal of 72481785 is 58718427.

It is not a de Polignac number, because 72481785 - 2³ = 72481777 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18966 + ... + 22464.

It is an arithmetic number, because the mean of its divisors is an integer number (7255500).

Almost surely, 2^72481785 is an apocalyptic number.

It is an amenable number.

72481785 is a deficient number, since it is larger than the sum of its proper divisors (43606215).

72481785 is a wasteful number, since it uses less digits than its factorization.

72481785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4888.

The product of its digits is 125440, while the sum is 42.

The square root of 72481785 is about 8513.6234941416. The cubic root of 72481785 is about 416.9426221740.

The spelling of 72481785 in words is "seventy-two million, four hundred eighty-one thousand, seven hundred eighty-five".