998012273 has 8 divisors (see below), whose sum is σ = 1012471848. Its totient is φ = 983574144.

The previous prime is 998012243. The next prime is 998012311. The reversal of 998012273 is 372210899.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 173633329 + 824378944 = 13177^2 + 28712^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 998012273 - 2⁸ = 998012017 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 998012273.

It is not an unprimeable number, because it can be changed into a prime (998012243) 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 7 ways as a sum of consecutive naturals, for example, 104411 + ... + 113567.

It is an arithmetic number, because the mean of its divisors is an integer number (126558981).

Almost surely, 2^998012273 is an apocalyptic number.

It is an amenable number.

998012273 is a deficient number, since it is larger than the sum of its proper divisors (14459575).

998012273 is a wasteful number, since it uses less digits than its factorization.

998012273 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10723.

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

The square root of 998012273 is about 31591.3322447788. The cubic root of 998012273 is about 999.3369848414.

The spelling of 998012273 in words is "nine hundred ninety-eight million, twelve thousand, two hundred seventy-three".