89787873 has 32 divisors (see below), whose sum is σ = 142663680. Its totient is φ = 49150080.

The previous prime is 89787871. The next prime is 89787899. The reversal of 89787873 is 37878798.

It is not a de Polignac number, because 89787873 - 2¹ = 89787871 is a prime.

It is not an unprimeable number, because it can be changed into a prime (89787871) 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, 69013 + ... + 70301.

It is an arithmetic number, because the mean of its divisors is an integer number (4458240).

Almost surely, 2^89787873 is an apocalyptic number.

It is an amenable number.

89787873 is a deficient number, since it is larger than the sum of its proper divisors (52875807).

89787873 is a wasteful number, since it uses less digits than its factorization.

89787873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1437.

The product of its digits is 4741632, while the sum is 57.

The square root of 89787873 is about 9475.6463104107. The cubic root of 89787873 is about 447.7881136226.

The spelling of 89787873 in words is "eighty-nine million, seven hundred eighty-seven thousand, eight hundred seventy-three".