213936827 has 16 divisors (see below), whose sum is σ = 243119520. Its totient is φ = 186624000.

The previous prime is 213936743. The next prime is 213936841. The reversal of 213936827 is 728639312.

213936827 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 213936827 - 2¹² = 213932731 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (213936847) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 132827 + ... + 134427.

It is an arithmetic number, because the mean of its divisors is an integer number (15194970).

Almost surely, 2^213936827 is an apocalyptic number.

213936827 is a deficient number, since it is larger than the sum of its proper divisors (29182693).

213936827 is a wasteful number, since it uses less digits than its factorization.

213936827 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2174.

The product of its digits is 108864, while the sum is 41.

The square root of 213936827 is about 14626.5794702658. The cubic root of 213936827 is about 598.0835397808.

The spelling of 213936827 in words is "two hundred thirteen million, nine hundred thirty-six thousand, eight hundred twenty-seven".