16652789 has 2 divisors, whose sum is σ = 16652790. Its totient is φ = 16652788.

The previous prime is 16652773. The next prime is 16652827. The reversal of 16652789 is 98725661.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16443025 + 209764 = 4055^2 + 458^2 .

It is a cyclic number.

It is not a de Polignac number, because 16652789 - 2⁴ = 16652773 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16652719) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8326394 + 8326395.

It is an arithmetic number, because the mean of its divisors is an integer number (8326395).

Almost surely, 2^16652789 is an apocalyptic number.

It is an amenable number.

16652789 is a deficient number, since it is larger than the sum of its proper divisors (1).

16652789 is an equidigital number, since it uses as much as digits as its factorization.

16652789 is an evil number, because the sum of its binary digits is even.

The product of its digits is 181440, while the sum is 44.

The square root of 16652789 is about 4080.7828905738. The cubic root of 16652789 is about 255.3655605319.

The spelling of 16652789 in words is "sixteen million, six hundred fifty-two thousand, seven hundred eighty-nine".