213891589 has 8 divisors (see below), whose sum is σ = 219092192. Its totient is φ = 208701360.

The previous prime is 213891563. The next prime is 213891593. The reversal of 213891589 is 985198312.

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

It is not a de Polignac number, because 213891589 - 2¹¹ = 213889541 is a prime.

It is a super-2 number, since 2×213891589² = 91499223689889842, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213891089) 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, 53587 + ... + 57439.

It is an arithmetic number, because the mean of its divisors is an integer number (27386524).

Almost surely, 2^213891589 is an apocalyptic number.

It is an amenable number.

213891589 is a deficient number, since it is larger than the sum of its proper divisors (5200603).

213891589 is a wasteful number, since it uses less digits than its factorization.

213891589 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5187.

The product of its digits is 155520, while the sum is 46.

The square root of 213891589 is about 14625.0329572278. The cubic root of 213891589 is about 598.0413809017.

The spelling of 213891589 in words is "two hundred thirteen million, eight hundred ninety-one thousand, five hundred eighty-nine".