216290927 has 8 divisors (see below), whose sum is σ = 229691760. Its totient is φ = 203091840.

The previous prime is 216290917. The next prime is 216290929. The reversal of 216290927 is 729092612.

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 216290927 - 2¹⁰ = 216289903 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216290929) 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, 48224 + ... + 52517.

It is an arithmetic number, because the mean of its divisors is an integer number (28711470).

Almost surely, 2^216290927 is an apocalyptic number.

216290927 is a deficient number, since it is larger than the sum of its proper divisors (13400833).

216290927 is a wasteful number, since it uses less digits than its factorization.

216290927 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100873.

The product of its (nonzero) digits is 27216, while the sum is 38.

The square root of 216290927 is about 14706.8326637655. The cubic root of 216290927 is about 600.2692560025.

The spelling of 216290927 in words is "two hundred sixteen million, two hundred ninety thousand, nine hundred twenty-seven".