999955469 has 2 divisors, whose sum is σ = 999955470. Its totient is φ = 999955468.

The previous prime is 999955457. The next prime is 999955483. The reversal of 999955469 is 964559999.

999955469 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 739132969 + 260822500 = 27187^2 + 16150^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-999955469 is a prime.

It is a super-2 number, since 2×999955469² = 1999821879966019922, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (999925469) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 499977734 + 499977735.

It is an arithmetic number, because the mean of its divisors is an integer number (499977735).

Almost surely, 2^999955469 is an apocalyptic number.

It is an amenable number.

999955469 is a deficient number, since it is larger than the sum of its proper divisors (1).

999955469 is an equidigital number, since it uses as much as digits as its factorization.

999955469 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 35429400, while the sum is 65.

The square root of 999955469 is about 31622.0724969127. The cubic root of 999955469 is about 999.9851561130.

The spelling of 999955469 in words is "nine hundred ninety-nine million, nine hundred fifty-five thousand, four hundred sixty-nine".