999469697 has 2 divisors, whose sum is σ = 999469698. Its totient is φ = 999469696.

The previous prime is 999469637. The next prime is 999469703. The reversal of 999469697 is 796964999.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 926350096 + 73119601 = 30436^2 + 8551^2 .

It is an emirp because it is prime and its reverse (796964999) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 999469697 - 2⁶ = 999469633 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (999469637) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 499734848 + 499734849.

It is an arithmetic number, because the mean of its divisors is an integer number (499734849).

Almost surely, 2^999469697 is an apocalyptic number.

It is an amenable number.

999469697 is a deficient number, since it is larger than the sum of its proper divisors (1).

999469697 is an equidigital number, since it uses as much as digits as its factorization.

999469697 is an evil number, because the sum of its binary digits is even.

The product of its digits is 59521392, while the sum is 68.

The square root of 999469697 is about 31614.3906631142. The cubic root of 999469697 is about 999.8232010773.

The spelling of 999469697 in words is "nine hundred ninety-nine million, four hundred sixty-nine thousand, six hundred ninety-seven".