6653939 has 2 divisors, whose sum is σ = 6653940. Its totient is φ = 6653938.

The previous prime is 6653921. The next prime is 6653957. The reversal of 6653939 is 9393566.

It is a balanced prime because it is at equal distance from previous prime (6653921) and next prime (6653957).

It is a cyclic number.

It is not a de Polignac number, because 6653939 - 2⁸ = 6653683 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6653896 and 6653905.

It is not a weakly prime, because it can be changed into another prime (6653989) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3326969 + 3326970.

It is an arithmetic number, because the mean of its divisors is an integer number (3326970).

Almost surely, 2^6653939 is an apocalyptic number.

6653939 is a deficient number, since it is larger than the sum of its proper divisors (1).

6653939 is an equidigital number, since it uses as much as digits as its factorization.

6653939 is an evil number, because the sum of its binary digits is even.

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

The square root of 6653939 is about 2579.5230179241. The cubic root of 6653939 is about 188.0873575454.

The spelling of 6653939 in words is "six million, six hundred fifty-three thousand, nine hundred thirty-nine".