72872885 has 24 divisors (see below), whose sum is σ = 94305120. Its totient is φ = 53897184.

The previous prime is 72872851. The next prime is 72872887. The reversal of 72872885 is 58827827.

It is not a de Polignac number, because 72872885 - 2¹⁰ = 72871861 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72872887) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 681002 + ... + 681108.

It is an arithmetic number, because the mean of its divisors is an integer number (3929380).

Almost surely, 2^72872885 is an apocalyptic number.

It is an amenable number.

72872885 is a deficient number, since it is larger than the sum of its proper divisors (21432235).

72872885 is a wasteful number, since it uses less digits than its factorization.

72872885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 305 (or 198 counting only the distinct ones).

The product of its digits is 501760, while the sum is 47.

The square root of 72872885 is about 8536.5616614653. The cubic root of 72872885 is about 417.6911957295.

The spelling of 72872885 in words is "seventy-two million, eight hundred seventy-two thousand, eight hundred eighty-five".