89212887 has 8 divisors (see below), whose sum is σ = 132167280. Its totient is φ = 59475240.

The previous prime is 89212873. The next prime is 89212891. The reversal of 89212887 is 78821298.

It is a happy number.

It is not a de Polignac number, because 89212887 - 2⁷ = 89212759 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89212867) 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, 1652064 + ... + 1652117.

It is an arithmetic number, because the mean of its divisors is an integer number (16520910).

Almost surely, 2^89212887 is an apocalyptic number.

89212887 is a deficient number, since it is larger than the sum of its proper divisors (42954393).

89212887 is a wasteful number, since it uses less digits than its factorization.

89212887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3304190 (or 3304184 counting only the distinct ones).

The product of its digits is 129024, while the sum is 45.

The square root of 89212887 is about 9445.2573813528. The cubic root of 89212887 is about 446.8302134326.

The spelling of 89212887 in words is "eighty-nine million, two hundred twelve thousand, eight hundred eighty-seven".