16872269 has 2 divisors, whose sum is σ = 16872270. Its totient is φ = 16872268.

The previous prime is 16872263. The next prime is 16872281. The reversal of 16872269 is 96227861.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13764100 + 3108169 = 3710^2 + 1763^2 .

It is a cyclic number.

It is not a de Polignac number, because 16872269 - 2²⁰ = 15823693 is a prime.

It is a super-2 number, since 2×16872269² = 569346922416722, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16872263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8436134 + 8436135.

It is an arithmetic number, because the mean of its divisors is an integer number (8436135).

Almost surely, 2^16872269 is an apocalyptic number.

It is an amenable number.

16872269 is a deficient number, since it is larger than the sum of its proper divisors (1).

16872269 is an equidigital number, since it uses as much as digits as its factorization.

16872269 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 72576, while the sum is 41.

The square root of 16872269 is about 4107.5867611044. The cubic root of 16872269 is about 256.4825543830.

The spelling of 16872269 in words is "sixteen million, eight hundred seventy-two thousand, two hundred sixty-nine".