99047831 has 16 divisors (see below), whose sum is σ = 107565408. Its totient is φ = 90854400.

The previous prime is 99047807. The next prime is 99047869. The reversal of 99047831 is 13874099.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 99047831 - 2¹⁴ = 99031447 is a prime.

It is a super-2 number, since 2×99047831² = 19620945651609122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99047881) 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 15 ways as a sum of consecutive naturals, for example, 189851 + ... + 190371.

It is an arithmetic number, because the mean of its divisors is an integer number (6722838).

Almost surely, 2^99047831 is an apocalyptic number.

99047831 is a deficient number, since it is larger than the sum of its proper divisors (8517577).

99047831 is a wasteful number, since it uses less digits than its factorization.

99047831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 802.

The product of its (nonzero) digits is 54432, while the sum is 41.

The square root of 99047831 is about 9952.2776790039. The cubic root of 99047831 is about 462.6809903763.

The spelling of 99047831 in words is "ninety-nine million, forty-seven thousand, eight hundred thirty-one".