6606731 has 2 divisors, whose sum is σ = 6606732. Its totient is φ = 6606730.

The previous prime is 6606679. The next prime is 6606739. The reversal of 6606731 is 1376066.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6606731 - 2¹⁴ = 6590347 is a prime.

It is a super-2 number, since 2×6606731² = 87297789012722, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 6606694 and 6606703.

It is not a weakly prime, because it can be changed into another prime (6606739) 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, 3303365 + 3303366.

It is an arithmetic number, because the mean of its divisors is an integer number (3303366).

Almost surely, 2^6606731 is an apocalyptic number.

6606731 is a deficient number, since it is larger than the sum of its proper divisors (1).

6606731 is an equidigital number, since it uses as much as digits as its factorization.

6606731 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4536, while the sum is 29.

The square root of 6606731 is about 2570.3562009963. The cubic root of 6606731 is about 187.6414908313.

It can be divided in two parts, 6606 and 731, that added together give a palindrome (7337).

The spelling of 6606731 in words is "six million, six hundred six thousand, seven hundred thirty-one".