998707093 has 4 divisors (see below), whose sum is σ = 1000462860. Its totient is φ = 996951328.

The previous prime is 998707091. The next prime is 998707117. The reversal of 998707093 is 390707899.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 390707899 = 73 ⋅5352163.

It can be written as a sum of positive squares in 2 ways, for example, as 229310449 + 769396644 = 15143^2 + 27738^2 .

It is a cyclic number.

It is not a de Polignac number, because 998707093 - 2¹ = 998707091 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 998707093.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (998707091) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 877030 + ... + 878167.

It is an arithmetic number, because the mean of its divisors is an integer number (250115715).

Almost surely, 2^998707093 is an apocalyptic number.

It is an amenable number.

998707093 is a deficient number, since it is larger than the sum of its proper divisors (1755767).

998707093 is a wasteful number, since it uses less digits than its factorization.

998707093 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1755766.

The product of its (nonzero) digits is 857304, while the sum is 52.

The square root of 998707093 is about 31602.3273351821. The cubic root of 998707093 is about 999.5688451322.

The spelling of 998707093 in words is "nine hundred ninety-eight million, seven hundred seven thousand, ninety-three".