999929471 has 2 divisors, whose sum is σ = 999929472. Its totient is φ = 999929470.

The previous prime is 999929449. The next prime is 999929479. The reversal of 999929471 is 174929999.

It is a strong prime.

It is an emirp because it is prime and its reverse (174929999) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 999929471 - 2⁶ = 999929407 is a prime.

It is a super-3 number, since 3×999929471³ (a number of 28 digits) contains 333 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 999929471.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (999929479) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 499964735 + 499964736.

It is an arithmetic number, because the mean of its divisors is an integer number (499964736).

Almost surely, 2^999929471 is an apocalyptic number.

999929471 is a deficient number, since it is larger than the sum of its proper divisors (1).

999929471 is an equidigital number, since it uses as much as digits as its factorization.

999929471 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3306744, while the sum is 59.

The square root of 999929471 is about 31621.6614206148. The cubic root of 999929471 is about 999.9764897806.

The spelling of 999929471 in words is "nine hundred ninety-nine million, nine hundred twenty-nine thousand, four hundred seventy-one".