398479883 has 2 divisors, whose sum is σ = 398479884. Its totient is φ = 398479882.

The previous prime is 398479841. The next prime is 398479889. The reversal of 398479883 is 388974893.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 398479883 - 2²⁴ = 381702667 is a prime.

It is not a weakly prime, because it can be changed into another prime (398479889) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 199239941 + 199239942.

It is an arithmetic number, because the mean of its divisors is an integer number (199239942).

Almost surely, 2^398479883 is an apocalyptic number.

398479883 is a deficient number, since it is larger than the sum of its proper divisors (1).

398479883 is an equidigital number, since it uses as much as digits as its factorization.

398479883 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10450944, while the sum is 59.

The square root of 398479883 is about 19961.9609006731. The cubic root of 398479883 is about 735.8717550604.

The spelling of 398479883 in words is "three hundred ninety-eight million, four hundred seventy-nine thousand, eight hundred eighty-three".