213351936 has 80 divisors (see below), whose sum is σ = 649613184. Its totient is φ = 60954624.

The previous prime is 213351911. The next prime is 213351937. The reversal of 213351936 is 639153312.

213351936 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 213351897 and 213351906.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213351937) 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, 831 + ... + 20673.

Almost surely, 2^213351936 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 213351936, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (324806592).

213351936 is an abundant number, since it is smaller than the sum of its proper divisors (436261248).

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

213351936 is an equidigital number, since it uses as much as digits as its factorization.

213351936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19871 (or 19855 counting only the distinct ones).

The product of its digits is 14580, while the sum is 33.

The square root of 213351936 is about 14606.5716716826. The cubic root of 213351936 is about 597.5380003025.

The spelling of 213351936 in words is "two hundred thirteen million, three hundred fifty-one thousand, nine hundred thirty-six".