999082491 has 16 divisors (see below), whose sum is σ = 1529696640. Its totient is φ = 573635520.

The previous prime is 999082481. The next prime is 999082499. The reversal of 999082491 is 194280999.

It is a happy number.

It is not a de Polignac number, because 999082491 - 2⁷ = 999082363 is a prime.

It is not an unprimeable number, because it can be changed into a prime (999082499) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 796090 + ... + 797343.

It is an arithmetic number, because the mean of its divisors is an integer number (95606040).

Almost surely, 2^999082491 is an apocalyptic number.

999082491 is a deficient number, since it is larger than the sum of its proper divisors (530614149).

999082491 is a wasteful number, since it uses less digits than its factorization.

999082491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1593466.

The product of its (nonzero) digits is 419904, while the sum is 51.

The square root of 999082491 is about 31608.2661814912. The cubic root of 999082491 is about 999.6940700831.

The spelling of 999082491 in words is "nine hundred ninety-nine million, eighty-two thousand, four hundred ninety-one".