216954 has 24 divisors (see below), whose sum is σ = 498420. Its totient is φ = 67968.

The previous prime is 216947. The next prime is 216967. The reversal of 216954 is 459612.

It can be written as a sum of positive squares in 2 ways, for example, as 216225 + 729 = 465^2 + 27^2 .

It is a plaindrome in base 13.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 216954.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 49 + ... + 660.

2²¹⁶⁹⁵⁴ is an apocalyptic number.

216954 is an abundant number, since it is smaller than the sum of its proper divisors (281466).

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

216954 is a wasteful number, since it uses less digits than its factorization.

216954 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 734 (or 731 counting only the distinct ones).

The product of its digits is 2160, while the sum is 27.

The square root of 216954 is about 465.7832113763. The cubic root of 216954 is about 60.0882036052.

The spelling of 216954 in words is "two hundred sixteen thousand, nine hundred fifty-four".