998831095 has 16 divisors (see below), whose sum is σ = 1232206848. Its totient is φ = 776701440.

The previous prime is 998831077. The next prime is 998831111. The reversal of 998831095 is 590138899.

It is not a de Polignac number, because 998831095 - 2⁷ = 998830967 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 249802 + ... + 253768.

It is an arithmetic number, because the mean of its divisors is an integer number (77012928).

Almost surely, 2^998831095 is an apocalyptic number.

998831095 is a deficient number, since it is larger than the sum of its proper divisors (233375753).

998831095 is a wasteful number, since it uses less digits than its factorization.

998831095 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5370.

The product of its (nonzero) digits is 699840, while the sum is 52.

The square root of 998831095 is about 31604.2891867544. The cubic root of 998831095 is about 999.6102130859.

The spelling of 998831095 in words is "nine hundred ninety-eight million, eight hundred thirty-one thousand, ninety-five".