216813027 has 8 divisors (see below), whose sum is σ = 289161216. Its totient is φ = 144503432.

The previous prime is 216813013. The next prime is 216813041. The reversal of 216813027 is 720318612.

It is an interprime number because it is at equal distance from previous prime (216813013) and next prime (216813041).

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

It is a cyclic number.

It is not a de Polignac number, because 216813027 - 2⁴ = 216813011 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 216812985 and 216813003.

It is not an unprimeable number, because it can be changed into a prime (216813097) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8158 + ... + 22364.

It is an arithmetic number, because the mean of its divisors is an integer number (36145152).

Almost surely, 2^216813027 is an apocalyptic number.

216813027 is a deficient number, since it is larger than the sum of its proper divisors (72348189).

216813027 is a wasteful number, since it uses less digits than its factorization.

216813027 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19297.

The product of its (nonzero) digits is 4032, while the sum is 30.

The square root of 216813027 is about 14724.5722178948. The cubic root of 216813027 is about 600.7518602279.

The spelling of 216813027 in words is "two hundred sixteen million, eight hundred thirteen thousand, twenty-seven".