999971411 has 8 divisors (see below), whose sum is σ = 1006597200. Its totient is φ = 993363840.

The previous prime is 999971381. The next prime is 999971429. The reversal of 999971411 is 114179999.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 999971411 - 2⁶ = 999971347 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 999971411.

It is not an unprimeable number, because it can be changed into a prime (999971431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 115895 + ... + 124223.

It is an arithmetic number, because the mean of its divisors is an integer number (125824650).

Almost surely, 2^999971411 is an apocalyptic number.

999971411 is a deficient number, since it is larger than the sum of its proper divisors (6625789).

999971411 is a wasteful number, since it uses less digits than its factorization.

999971411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9109.

The product of its digits is 183708, while the sum is 50.

The square root of 999971411 is about 31622.3245666728. The cubic root of 999971411 is about 999.9904702425.

The spelling of 999971411 in words is "nine hundred ninety-nine million, nine hundred seventy-one thousand, four hundred eleven".