213671216 has 40 divisors (see below), whose sum is σ = 457095744. Its totient is φ = 95946560.

The previous prime is 213671209. The next prime is 213671231. The reversal of 213671216 is 612176312.

213671216 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7295 + ... + 21921.

Almost surely, 2^213671216 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 213671216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (228547872).

213671216 is an abundant number, since it is smaller than the sum of its proper divisors (243424528).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

213671216 is a wasteful number, since it uses less digits than its factorization.

213671216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14729 (or 14723 counting only the distinct ones).

The product of its digits is 3024, while the sum is 29.

The square root of 213671216 is about 14617.4969129465. The cubic root of 213671216 is about 597.8359225171.

The spelling of 213671216 in words is "two hundred thirteen million, six hundred seventy-one thousand, two hundred sixteen".