6995623 has 2 divisors, whose sum is σ = 6995624. Its totient is φ = 6995622.

The previous prime is 6995617. The next prime is 6995647. The reversal of 6995623 is 3265996.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6995623 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6995683) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3497811 + 3497812.

It is an arithmetic number, because the mean of its divisors is an integer number (3497812).

Almost surely, 2^6995623 is an apocalyptic number.

6995623 is a deficient number, since it is larger than the sum of its proper divisors (1).

6995623 is an equidigital number, since it uses as much as digits as its factorization.

6995623 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 87480, while the sum is 40.

The square root of 6995623 is about 2644.9240064698. The cubic root of 6995623 is about 191.2532390127.

The spelling of 6995623 in words is "six million, nine hundred ninety-five thousand, six hundred twenty-three".