216702 has 16 divisors (see below), whose sum is σ = 481680. Its totient is φ = 72216.

The previous prime is 216679. The next prime is 216703. The reversal of 216702 is 207612.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 216702.

It is not an unprimeable number, because it can be changed into a prime (216703) by changing a digit.

216702 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1953 + ... + 2060.

It is an arithmetic number, because the mean of its divisors is an integer number (30105).

2²¹⁶⁷⁰² is an apocalyptic number.

216702 is an abundant number, since it is smaller than the sum of its proper divisors (264978).

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

216702 is a wasteful number, since it uses less digits than its factorization.

216702 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4024 (or 4018 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 18.

The square root of 216702 is about 465.5126206667. The cubic root of 216702 is about 60.0649297102.

The spelling of 216702 in words is "two hundred sixteen thousand, seven hundred two".