89707 has 4 divisors (see below), whose sum is σ = 90640. Its totient is φ = 88776.

The previous prime is 89689. The next prime is 89753. The reversal of 89707 is 70798.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-89707 is a prime.

It is a Duffinian number.

It is a plaindrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (89767) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 303 + ... + 520.

It is an arithmetic number, because the mean of its divisors is an integer number (22660).

2⁸⁹⁷⁰⁷ is an apocalyptic number.

89707 is a deficient number, since it is larger than the sum of its proper divisors (933).

89707 is a wasteful number, since it uses less digits than its factorization.

89707 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 932.

The product of its (nonzero) digits is 3528, while the sum is 31.

The square root of 89707 is about 299.5112685693. The cubic root of 89707 is about 44.7653630553.

Subtracting from 89707 its sum of digits (31), we obtain a triangular number (89676 = T₄₂₃).

The spelling of 89707 in words is "eighty-nine thousand, seven hundred seven".