16652399 has 2 divisors, whose sum is σ = 16652400. Its totient is φ = 16652398.

The previous prime is 16652387. The next prime is 16652407. The reversal of 16652399 is 99325661.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 16652399 - 2⁸ = 16652143 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 (16652359) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8326199 + 8326200.

It is an arithmetic number, because the mean of its divisors is an integer number (8326200).

Almost surely, 2^16652399 is an apocalyptic number.

16652399 is a deficient number, since it is larger than the sum of its proper divisors (1).

16652399 is an equidigital number, since it uses as much as digits as its factorization.

16652399 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 87480, while the sum is 41.

The square root of 16652399 is about 4080.7351053456. The cubic root of 16652399 is about 255.3635670050.

The spelling of 16652399 in words is "sixteen million, six hundred fifty-two thousand, three hundred ninety-nine".