70889 has 16 divisors (see below), whose sum is σ = 94080. Its totient is φ = 51840.

The previous prime is 70879. The next prime is 70891. The reversal of 70889 is 98807.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-70889 is a prime.

It is not an unprimeable number, because it can be changed into a prime (70849) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1709 + ... + 1749.

It is an arithmetic number, because the mean of its divisors is an integer number (5880).

2⁷⁰⁸⁸⁹ is an apocalyptic number.

It is an amenable number.

70889 is a deficient number, since it is larger than the sum of its proper divisors (23191).

70889 is a wasteful number, since it uses less digits than its factorization.

70889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80.

The product of its (nonzero) digits is 4032, while the sum is 32.

The square root of 70889 is about 266.2498826291. The cubic root of 70889 is about 41.3865873297.

It can be divided in two parts, 708 and 89, that added together give a palindrome (797).

The spelling of 70889 in words is "seventy thousand, eight hundred eighty-nine".