213089287 has 8 divisors (see below), whose sum is σ = 217039680. Its totient is φ = 209153760.

The previous prime is 213089269. The next prime is 213089291. The reversal of 213089287 is 782980312.

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 213089287 - 2¹¹ = 213087239 is a prime.

It is a Duffinian number.

It is a zygodrome in base 3.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213089207) 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, 27618 + ... + 34480.

It is an arithmetic number, because the mean of its divisors is an integer number (27129960).

Almost surely, 2^213089287 is an apocalyptic number.

213089287 is a deficient number, since it is larger than the sum of its proper divisors (3950393).

213089287 is an equidigital number, since it uses as much as digits as its factorization.

213089287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7433.

The product of its (nonzero) digits is 48384, while the sum is 40.

The square root of 213089287 is about 14597.5781210446. The cubic root of 213089287 is about 597.2926979362.

The spelling of 213089287 in words is "two hundred thirteen million, eighty-nine thousand, two hundred eighty-seven".