398523283 has 2 divisors, whose sum is σ = 398523284. Its totient is φ = 398523282.

The previous prime is 398523253. The next prime is 398523287. The reversal of 398523283 is 382325893.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 398523283 - 2²¹ = 396426131 is a prime.

It is not a weakly prime, because it can be changed into another prime (398523287) 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 as a sum of consecutive naturals, namely, 199261641 + 199261642.

It is an arithmetic number, because the mean of its divisors is an integer number (199261642).

Almost surely, 2^398523283 is an apocalyptic number.

398523283 is a deficient number, since it is larger than the sum of its proper divisors (1).

398523283 is an equidigital number, since it uses as much as digits as its factorization.

398523283 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 311040, while the sum is 43.

The square root of 398523283 is about 19963.0479386290. The cubic root of 398523283 is about 735.8984696460.

The spelling of 398523283 in words is "three hundred ninety-eight million, five hundred twenty-three thousand, two hundred eighty-three".