213733671 has 8 divisors (see below), whose sum is σ = 285066480. Its totient is φ = 142444992.

The previous prime is 213733661. The next prime is 213733703. The reversal of 213733671 is 176337312.

It is a happy number.

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

It is not a de Polignac number, because 213733671 - 2⁷ = 213733543 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213733601) 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, 2721 + ... + 20853.

It is an arithmetic number, because the mean of its divisors is an integer number (35633310).

Almost surely, 2^213733671 is an apocalyptic number.

213733671 is a deficient number, since it is larger than the sum of its proper divisors (71332809).

213733671 is a wasteful number, since it uses less digits than its factorization.

213733671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22065.

The product of its digits is 15876, while the sum is 33.

The square root of 213733671 is about 14619.6330665308. The cubic root of 213733671 is about 597.8941649669.

The spelling of 213733671 in words is "two hundred thirteen million, seven hundred thirty-three thousand, six hundred seventy-one".