216707613 has 16 divisors (see below), whose sum is σ = 292988160. Its totient is φ = 142458624.

The previous prime is 216707501. The next prime is 216707629. The reversal of 216707613 is 316707612.

It is not a de Polignac number, because 216707613 - 2¹⁶ = 216642077 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216707663) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 122745 + ... + 124497.

It is an arithmetic number, because the mean of its divisors is an integer number (18311760).

Almost surely, 2^216707613 is an apocalyptic number.

It is an amenable number.

216707613 is a deficient number, since it is larger than the sum of its proper divisors (76280547).

216707613 is a wasteful number, since it uses less digits than its factorization.

216707613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2308.

The product of its (nonzero) digits is 10584, while the sum is 33.

The square root of 216707613 is about 14720.9922559588. The cubic root of 216707613 is about 600.6544830492.

Subtracting 216707613 from its reverse (316707612), we obtain a palindrome (99999999).

The spelling of 216707613 in words is "two hundred sixteen million, seven hundred seven thousand, six hundred thirteen".