213605889 has 8 divisors (see below), whose sum is σ = 325494720. Its totient is φ = 122060496.

The previous prime is 213605881. The next prime is 213605893. The reversal of 213605889 is 988506312.

213605889 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 213605889 - 2³ = 213605881 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 213605889.

It is not an unprimeable number, because it can be changed into a prime (213605881) 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, 5085834 + ... + 5085875.

It is an arithmetic number, because the mean of its divisors is an integer number (40686840).

Almost surely, 2^213605889 is an apocalyptic number.

It is an amenable number.

213605889 is a deficient number, since it is larger than the sum of its proper divisors (111888831).

213605889 is a wasteful number, since it uses less digits than its factorization.

213605889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10171719.

The product of its (nonzero) digits is 103680, while the sum is 42.

The square root of 213605889 is about 14615.2621940217. The cubic root of 213605889 is about 597.7749896364.

The spelling of 213605889 in words is "two hundred thirteen million, six hundred five thousand, eight hundred eighty-nine".