998009051 has 12 divisors (see below), whose sum is σ = 1081727640. Its totient is φ = 920350080.

The previous prime is 998009039. The next prime is 998009057. The reversal of 998009051 is 150900899.

It is a de Polignac number, because none of the positive numbers 2^k-998009051 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (998009057) 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 11 ways as a sum of consecutive naturals, for example, 227840 + ... + 232178.

It is an arithmetic number, because the mean of its divisors is an integer number (90143970).

Almost surely, 2^998009051 is an apocalyptic number.

998009051 is a deficient number, since it is larger than the sum of its proper divisors (83718589).

998009051 is a wasteful number, since it uses less digits than its factorization.

998009051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5726 (or 5713 counting only the distinct ones).

The product of its (nonzero) digits is 29160, while the sum is 41.

The square root of 998009051 is about 31591.2812497372. The cubic root of 998009051 is about 999.3359094147.

The spelling of 998009051 in words is "nine hundred ninety-eight million, nine thousand, fifty-one".