213710 has 32 divisors (see below), whose sum is σ = 456192. Its totient is φ = 70560.

The previous prime is 213659. The next prime is 213713. The reversal of 213710 is 17312.

213710 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213713) 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, 2975 + ... + 3045.

It is an arithmetic number, because the mean of its divisors is an integer number (14256).

2²¹³⁷¹⁰ is an apocalyptic number.

213710 is an abundant number, since it is smaller than the sum of its proper divisors (242482).

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

213710 is a wasteful number, since it uses less digits than its factorization.

213710 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128.

The product of its (nonzero) digits is 42, while the sum is 14.

The square root of 213710 is about 462.2877891530. The cubic root of 213710 is about 59.7872091896.

The spelling of 213710 in words is "two hundred thirteen thousand, seven hundred ten".