991304095 has 16 divisors (see below), whose sum is σ = 1197551520. Its totient is φ = 787737600.

The previous prime is 991304077. The next prime is 991304101. The reversal of 991304095 is 590403199.

It is not a de Polignac number, because 991304095 - 2¹⁵ = 991271327 is a prime.

It is a congruent number.

It is an unprimeable number.

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, 627016 + ... + 628594.

It is an arithmetic number, because the mean of its divisors is an integer number (74846970).

Almost surely, 2^991304095 is an apocalyptic number.

991304095 is a deficient number, since it is larger than the sum of its proper divisors (206247425).

991304095 is a wasteful number, since it uses less digits than its factorization.

991304095 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2346.

The product of its (nonzero) digits is 43740, while the sum is 40.

The square root of 991304095 is about 31484.9820549417. The cubic root of 991304095 is about 997.0929220873.

The spelling of 991304095 in words is "nine hundred ninety-one million, three hundred four thousand, ninety-five".