89870685 has 8 divisors (see below), whose sum is σ = 143793120. Its totient is φ = 47931024.

The previous prime is 89870659. The next prime is 89870689. The reversal of 89870685 is 58607898.

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 89870685 - 2¹¹ = 89868637 is a prime.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89870689) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2995675 + ... + 2995704.

It is an arithmetic number, because the mean of its divisors is an integer number (17974140).

Almost surely, 2^89870685 is an apocalyptic number.

It is an amenable number.

89870685 is a deficient number, since it is larger than the sum of its proper divisors (53922435).

89870685 is a wasteful number, since it uses less digits than its factorization.

89870685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5991387.

The product of its (nonzero) digits is 967680, while the sum is 51.

The square root of 89870685 is about 9480.0150316337. The cubic root of 89870685 is about 447.9257373850.

The spelling of 89870685 in words is "eighty-nine million, eight hundred seventy thousand, six hundred eighty-five".