213738889 has 8 divisors (see below), whose sum is σ = 263063360. Its totient is φ = 169112016.

The previous prime is 213738883. The next prime is 213738913. The reversal of 213738889 is 988837312.

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

It is a cyclic number.

It is not a de Polignac number, because 213738889 - 2³ = 213738881 is a prime.

It is not an unprimeable number, because it can be changed into a prime (213738881) 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, 1174299 + ... + 1174480.

It is an arithmetic number, because the mean of its divisors is an integer number (32882920).

Almost surely, 2^213738889 is an apocalyptic number.

It is an amenable number.

213738889 is a deficient number, since it is larger than the sum of its proper divisors (49324471).

213738889 is a wasteful number, since it uses less digits than its factorization.

213738889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2348799.

The product of its digits is 580608, while the sum is 49.

The square root of 213738889 is about 14619.8115240929. The cubic root of 213738889 is about 597.8990305025.

The spelling of 213738889 in words is "two hundred thirteen million, seven hundred thirty-eight thousand, eight hundred eighty-nine".