16872929 has 2 divisors, whose sum is σ = 16872930. Its totient is φ = 16872928.

The previous prime is 16872923. The next prime is 16872967. The reversal of 16872929 is 92927861.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16851025 + 21904 = 4105^2 + 148^2 .

It is a cyclic number.

It is not a de Polignac number, because 16872929 - 2⁴ = 16872913 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 16872929.

It is not a weakly prime, because it can be changed into another prime (16872923) 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, 8436464 + 8436465.

It is an arithmetic number, because the mean of its divisors is an integer number (8436465).

Almost surely, 2^16872929 is an apocalyptic number.

It is an amenable number.

16872929 is a deficient number, since it is larger than the sum of its proper divisors (1).

16872929 is an equidigital number, since it uses as much as digits as its factorization.

16872929 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 108864, while the sum is 44.

The square root of 16872929 is about 4107.6670994617. The cubic root of 16872929 is about 256.4858986532.

The spelling of 16872929 in words is "sixteen million, eight hundred seventy-two thousand, nine hundred twenty-nine".