89570139 has 8 divisors (see below), whose sum is σ = 120586752. Its totient is φ = 59133480.

The previous prime is 89570137. The next prime is 89570149. The reversal of 89570139 is 93107598.

It is a happy number.

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

It is not a de Polignac number, because 89570139 - 2¹ = 89570137 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 89570139.

It is not an unprimeable number, because it can be changed into a prime (89570137) 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 7 ways as a sum of consecutive naturals, for example, 144627 + ... + 145244.

It is an arithmetic number, because the mean of its divisors is an integer number (15073344).

Almost surely, 2^89570139 is an apocalyptic number.

89570139 is a deficient number, since it is larger than the sum of its proper divisors (31016613).

89570139 is a wasteful number, since it uses less digits than its factorization.

89570139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 289977.

The product of its (nonzero) digits is 68040, while the sum is 42.

The square root of 89570139 is about 9464.1501995689. The cubic root of 89570139 is about 447.4258612341.

The spelling of 89570139 in words is "eighty-nine million, five hundred seventy thousand, one hundred thirty-nine".