216002 has 8 divisors (see below), whose sum is σ = 343116. Its totient is φ = 101632.

The previous prime is 215983. The next prime is 216023. The reversal of 216002 is 200612.

216002 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 212521 + 3481 = 461^2 + 59^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3143 + ... + 3210.

216002 is a Friedman number, since it can be written as 60^(2+1+0)+2, using all its digits and the basic arithmetic operations.

2²¹⁶⁰⁰² is an apocalyptic number.

216002 is a deficient number, since it is larger than the sum of its proper divisors (127114).

216002 is a wasteful number, since it uses less digits than its factorization.

216002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6372.

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 216002 is about 464.7601531973. The cubic root of 216002 is about 60.0001851846. Note that the first 3 decimals are identical.

Adding to 216002 its reverse (200612), we get a palindrome (416614).

The spelling of 216002 in words is "two hundred sixteen thousand, two".