72785300 has 36 divisors (see below), whose sum is σ = 180509280. Its totient is φ = 24954720.

The previous prime is 72785287. The next prime is 72785309. The reversal of 72785300 is 358727.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72785309) 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 11 ways as a sum of consecutive naturals, for example, 51290 + ... + 52689.

Almost surely, 2^72785300 is an apocalyptic number.

72785300 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

72785300 is an abundant number, since it is smaller than the sum of its proper divisors (107723980).

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

72785300 is a wasteful number, since it uses less digits than its factorization.

72785300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104000 (or 103993 counting only the distinct ones).

The product of its (nonzero) digits is 11760, while the sum is 32.

The square root of 72785300 is about 8531.4301263036. The cubic root of 72785300 is about 417.5237893863.

The spelling of 72785300 in words is "seventy-two million, seven hundred eighty-five thousand, three hundred".