89887 has 4 divisors (see below), whose sum is σ = 102736. Its totient is φ = 77040.

The previous prime is 89867. The next prime is 89891. The reversal of 89887 is 78898.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 89887 - 2⁷ = 89759 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89867) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6414 + ... + 6427.

It is an arithmetic number, because the mean of its divisors is an integer number (25684).

2⁸⁹⁸⁸⁷ is an apocalyptic number.

89887 is a deficient number, since it is larger than the sum of its proper divisors (12849).

89887 is a wasteful number, since it uses less digits than its factorization.

89887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12848.

The product of its digits is 32256, while the sum is 40.

The square root of 89887 is about 299.8116075138. The cubic root of 89887 is about 44.7952841018.

The spelling of 89887 in words is "eighty-nine thousand, eight hundred eighty-seven".