6653399 has 2 divisors, whose sum is σ = 6653400. Its totient is φ = 6653398.

The previous prime is 6653389. The next prime is 6653411. The reversal of 6653399 is 9933566.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6653399 - 2¹⁶ = 6587863 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 (6653329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3326699 + 3326700.

It is an arithmetic number, because the mean of its divisors is an integer number (3326700).

Almost surely, 2^6653399 is an apocalyptic number.

6653399 is a deficient number, since it is larger than the sum of its proper divisors (1).

6653399 is an equidigital number, since it uses as much as digits as its factorization.

6653399 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 131220, while the sum is 41.

The square root of 6653399 is about 2579.4183452864. The cubic root of 6653399 is about 188.0822693352.

The spelling of 6653399 in words is "six million, six hundred fifty-three thousand, three hundred ninety-nine".