398482297 has 2 divisors, whose sum is σ = 398482298. Its totient is φ = 398482296.

The previous prime is 398482229. The next prime is 398482319. The reversal of 398482297 is 792284893.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 369062521 + 29419776 = 19211^2 + 5424^2 .

It is a cyclic number.

It is not a de Polignac number, because 398482297 - 2²³ = 390093689 is a prime.

It is not a weakly prime, because it can be changed into another prime (398482697) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 199241148 + 199241149.

It is an arithmetic number, because the mean of its divisors is an integer number (199241149).

Almost surely, 2^398482297 is an apocalyptic number.

It is an amenable number.

398482297 is a deficient number, since it is larger than the sum of its proper divisors (1).

398482297 is an equidigital number, since it uses as much as digits as its factorization.

398482297 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1741824, while the sum is 52.

The square root of 398482297 is about 19962.0213655832. The cubic root of 398482297 is about 735.8732410333.

The spelling of 398482297 in words is "three hundred ninety-eight million, four hundred eighty-two thousand, two hundred ninety-seven".