216017413 has 4 divisors (see below), whose sum is σ = 216509920. Its totient is φ = 215524908.

The previous prime is 216017407. The next prime is 216017437. The reversal of 216017413 is 314710612.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 216017413 - 2⁵ = 216017381 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216017443) 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, 245595 + ... + 246472.

It is an arithmetic number, because the mean of its divisors is an integer number (54127480).

Almost surely, 2^216017413 is an apocalyptic number.

It is an amenable number.

216017413 is a deficient number, since it is larger than the sum of its proper divisors (492507).

216017413 is an equidigital number, since it uses as much as digits as its factorization.

216017413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 492506.

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 216017413 is about 14697.5308470505. The cubic root of 216017413 is about 600.0161227149.

The spelling of 216017413 in words is "two hundred sixteen million, seventeen thousand, four hundred thirteen".