998552297 has 2 divisors, whose sum is σ = 998552298. Its totient is φ = 998552296.

The previous prime is 998552251. The next prime is 998552323. The reversal of 998552297 is 792255899.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 824206681 + 174345616 = 28709^2 + 13204^2 .

It is a cyclic number.

It is not a de Polignac number, because 998552297 - 2²² = 994357993 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (998552197) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 499276148 + 499276149.

It is an arithmetic number, because the mean of its divisors is an integer number (499276149).

Almost surely, 2^998552297 is an apocalyptic number.

It is an amenable number.

998552297 is a deficient number, since it is larger than the sum of its proper divisors (1).

998552297 is an equidigital number, since it uses as much as digits as its factorization.

998552297 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4082400, while the sum is 56.

The square root of 998552297 is about 31599.8781168536. The cubic root of 998552297 is about 999.5171992743.

The spelling of 998552297 in words is "nine hundred ninety-eight million, five hundred fifty-two thousand, two hundred ninety-seven".