6309997 has 2 divisors, whose sum is σ = 6309998. Its totient is φ = 6309996.

The previous prime is 6309973. The next prime is 6310039. The reversal of 6309997 is 7999036.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5924356 + 385641 = 2434^2 + 621^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6309997 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6309917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3154998 + 3154999.

It is an arithmetic number, because the mean of its divisors is an integer number (3154999).

Almost surely, 2^6309997 is an apocalyptic number.

It is an amenable number.

6309997 is a deficient number, since it is larger than the sum of its proper divisors (1).

6309997 is an equidigital number, since it uses as much as digits as its factorization.

6309997 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 91854, while the sum is 43.

The square root of 6309997 is about 2511.9707402755. The cubic root of 6309997 is about 184.7891144585.

The spelling of 6309997 in words is "six million, three hundred nine thousand, nine hundred ninety-seven".