16869213 has 12 divisors (see below), whose sum is σ = 25207260. Its totient is φ = 10858176.

The previous prime is 16869199. The next prime is 16869227. The reversal of 16869213 is 31296861.

It is an interprime number because it is at equal distance from previous prime (16869199) and next prime (16869227).

It can be written as a sum of positive squares in 2 ways, for example, as 9018009 + 7851204 = 3003^2 + 2802^2 .

It is not a de Polignac number, because 16869213 - 2⁹ = 16868701 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16869233) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 32056 + ... + 32577.

It is an arithmetic number, because the mean of its divisors is an integer number (2100605).

Almost surely, 2^16869213 is an apocalyptic number.

It is an amenable number.

16869213 is a deficient number, since it is larger than the sum of its proper divisors (8338047).

16869213 is a wasteful number, since it uses less digits than its factorization.

16869213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64668 (or 64665 counting only the distinct ones).

The product of its digits is 15552, while the sum is 36.

The square root of 16869213 is about 4107.2147496813. The cubic root of 16869213 is about 256.4670682617.

The spelling of 16869213 in words is "sixteen million, eight hundred sixty-nine thousand, two hundred thirteen".