212889589 has 16 divisors (see below), whose sum is σ = 251911296. Its totient is φ = 177702400.

The previous prime is 212889583. The next prime is 212889613. The reversal of 212889589 is 985988212.

It is a cyclic number.

It is not a de Polignac number, because 212889589 - 2³ = 212889581 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212889581) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6217 + ... + 21550.

It is an arithmetic number, because the mean of its divisors is an integer number (15744456).

Almost surely, 2^212889589 is an apocalyptic number.

It is an amenable number.

212889589 is a deficient number, since it is larger than the sum of its proper divisors (39021707).

212889589 is a wasteful number, since it uses less digits than its factorization.

212889589 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27836.

The product of its digits is 829440, while the sum is 52.

The square root of 212889589 is about 14590.7364104763. The cubic root of 212889589 is about 597.1060540508.

The spelling of 212889589 in words is "two hundred twelve million, eight hundred eighty-nine thousand, five hundred eighty-nine".