998824947 has 16 divisors (see below), whose sum is σ = 1352316672. Its totient is φ = 655633440.

The previous prime is 998824943. The next prime is 998824951. The reversal of 998824947 is 749428899.

It is an interprime number because it is at equal distance from previous prime (998824943) and next prime (998824951).

It is not a de Polignac number, because 998824947 - 2² = 998824943 is a prime.

It is not an unprimeable number, because it can be changed into a prime (998824943) 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, 184128 + ... + 189474.

It is an arithmetic number, because the mean of its divisors is an integer number (84519792).

Almost surely, 2^998824947 is an apocalyptic number.

998824947 is a deficient number, since it is larger than the sum of its proper divisors (353491725).

998824947 is a wasteful number, since it uses less digits than its factorization.

998824947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6298.

The product of its digits is 10450944, while the sum is 60.

The square root of 998824947 is about 31604.1919213259. The cubic root of 998824947 is about 999.6081621498.

The spelling of 998824947 in words is "nine hundred ninety-eight million, eight hundred twenty-four thousand, nine hundred forty-seven".