89318687 has 4 divisors (see below), whose sum is σ = 89468400. Its totient is φ = 89168976.

The previous prime is 89318653. The next prime is 89318699. The reversal of 89318687 is 78681398.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 78681398 = 2 ⋅39340699.

It is a cyclic number.

It is not a de Polignac number, because 89318687 - 2⁸ = 89318431 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 (89318617) 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, 73958 + ... + 75155.

It is an arithmetic number, because the mean of its divisors is an integer number (22367100).

Almost surely, 2^89318687 is an apocalyptic number.

89318687 is a deficient number, since it is larger than the sum of its proper divisors (149713).

89318687 is a wasteful number, since it uses less digits than its factorization.

89318687 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149712.

The product of its digits is 580608, while the sum is 50.

The square root of 89318687 is about 9450.8564162196. The cubic root of 89318687 is about 447.0067797052.

The spelling of 89318687 in words is "eighty-nine million, three hundred eighteen thousand, six hundred eighty-seven".