72889773 has 32 divisors (see below), whose sum is σ = 112054272. Its totient is φ = 41731200.

The previous prime is 72889771. The next prime is 72889799. The reversal of 72889773 is 37798827.

It is not a de Polignac number, because 72889773 - 2¹ = 72889771 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 (72889771) 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 31 ways as a sum of consecutive naturals, for example, 43161 + ... + 44817.

It is an arithmetic number, because the mean of its divisors is an integer number (3501696).

Almost surely, 2^72889773 is an apocalyptic number.

It is an amenable number.

72889773 is a deficient number, since it is larger than the sum of its proper divisors (39164499).

72889773 is a wasteful number, since it uses less digits than its factorization.

72889773 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1745.

The product of its digits is 1185408, while the sum is 51.

The square root of 72889773 is about 8537.5507611961. The cubic root of 72889773 is about 417.7234593260.

The spelling of 72889773 in words is "seventy-two million, eight hundred eighty-nine thousand, seven hundred seventy-three".