998524493 has 2 divisors, whose sum is σ = 998524494. Its totient is φ = 998524492.

The previous prime is 998524487. The next prime is 998524511. The reversal of 998524493 is 394425899.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 705327364 + 293197129 = 26558^2 + 17123^2 .

It is a cyclic number.

It is not a de Polignac number, because 998524493 - 2¹⁰ = 998523469 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (998524403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 499262246 + 499262247.

It is an arithmetic number, because the mean of its divisors is an integer number (499262247).

Almost surely, 2^998524493 is an apocalyptic number.

It is an amenable number.

998524493 is a deficient number, since it is larger than the sum of its proper divisors (1).

998524493 is an equidigital number, since it uses as much as digits as its factorization.

998524493 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2799360, while the sum is 53.

The square root of 998524493 is about 31599.4381753853. The cubic root of 998524493 is about 999.5079222325.

The spelling of 998524493 in words is "nine hundred ninety-eight million, five hundred twenty-four thousand, four hundred ninety-three".