213716 has 18 divisors (see below), whose sum is σ = 394842. Its totient is φ = 101200.

The previous prime is 213713. The next prime is 213721. The reversal of 213716 is 617312.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 211600 + 2116 = 460^2 + 46^2 .

Its product of digits (252) is a multiple of the sum of its prime divisors (126).

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 5 ways as a sum of consecutive naturals, for example, 2066 + ... + 2166.

2²¹³⁷¹⁶ is an apocalyptic number.

It is an amenable number.

213716 is a deficient number, since it is larger than the sum of its proper divisors (181126).

213716 is a wasteful number, since it uses less digits than its factorization.

213716 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151 (or 126 counting only the distinct ones).

The product of its digits is 252, while the sum is 20.

The square root of 213716 is about 462.2942785716. The cubic root of 213716 is about 59.7877687016.

It can be divided in two parts, 213 and 716, that added together give a palindrome (929).

The spelling of 213716 in words is "two hundred thirteen thousand, seven hundred sixteen".