210712 has 8 divisors (see below), whose sum is σ = 395100. Its totient is φ = 105352.

The previous prime is 210709. The next prime is 210713. The reversal of 210712 is 217012.

210712 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 210692 and 210701.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210713) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13162 + ... + 13177.

2²¹⁰⁷¹² is an apocalyptic number.

It is an amenable number.

210712 is a deficient number, since it is larger than the sum of its proper divisors (184388).

210712 is a wasteful number, since it uses less digits than its factorization.

210712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26345 (or 26341 counting only the distinct ones).

The product of its (nonzero) digits is 28, while the sum is 13.

The square root of 210712 is about 459.0337678211. The cubic root of 210712 is about 59.5063195039.

Adding to 210712 its reverse (217012), we get a palindrome (427724).

The spelling of 210712 in words is "two hundred ten thousand, seven hundred twelve", and thus it is an iban number.