16709213 has 4 divisors (see below), whose sum is σ = 16992480. Its totient is φ = 16425948.

The previous prime is 16709183. The next prime is 16709219. The reversal of 16709213 is 31290761.

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, and also an emirpimes, since its reverse is a distinct semiprime: 31290761 = 17 ⋅1840633.

It is a cyclic number.

It is not a de Polignac number, because 16709213 - 2⁶ = 16709149 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 (16709219) 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, 141545 + ... + 141662.

It is an arithmetic number, because the mean of its divisors is an integer number (4248120).

Almost surely, 2^16709213 is an apocalyptic number.

It is an amenable number.

16709213 is a deficient number, since it is larger than the sum of its proper divisors (283267).

16709213 is an equidigital number, since it uses as much as digits as its factorization.

16709213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 283266.

The product of its (nonzero) digits is 2268, while the sum is 29.

The square root of 16709213 is about 4087.6904236989. The cubic root of 16709213 is about 255.6536504812.

Adding to 16709213 its reverse (31290761), we get a palindrome (47999974).

The spelling of 16709213 in words is "sixteen million, seven hundred nine thousand, two hundred thirteen".