216361627 has 4 divisors (see below), whose sum is σ = 217066696. Its totient is φ = 215656560.

The previous prime is 216361609. The next prime is 216361631. The reversal of 216361627 is 726163612.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-216361627 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 216361592 and 216361601.

It is not an unprimeable number, because it can be changed into a prime (216361657) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 352074 + ... + 352687.

It is an arithmetic number, because the mean of its divisors is an integer number (54266674).

Almost surely, 2^216361627 is an apocalyptic number.

216361627 is a deficient number, since it is larger than the sum of its proper divisors (705069).

216361627 is an equidigital number, since it uses as much as digits as its factorization.

216361627 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 705068.

The product of its digits is 18144, while the sum is 34.

The square root of 216361627 is about 14709.2361120488. The cubic root of 216361627 is about 600.3346531256.

The spelling of 216361627 in words is "two hundred sixteen million, three hundred sixty-one thousand, six hundred twenty-seven".