89987242 has 8 divisors (see below), whose sum is σ = 135875232. Its totient is φ = 44695500.

The previous prime is 89987237. The next prime is 89987243. The reversal of 89987242 is 24278998.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (89987243) 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 3 ways as a sum of consecutive naturals, for example, 148684 + ... + 149287.

It is an arithmetic number, because the mean of its divisors is an integer number (16984404).

Almost surely, 2^89987242 is an apocalyptic number.

89987242 is a deficient number, since it is larger than the sum of its proper divisors (45887990).

89987242 is a wasteful number, since it uses less digits than its factorization.

89987242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 298124.

The product of its digits is 580608, while the sum is 49.

The square root of 89987242 is about 9486.1605510343. The cubic root of 89987242 is about 448.1192981877.

The spelling of 89987242 in words is "eighty-nine million, nine hundred eighty-seven thousand, two hundred forty-two".