398011039 has 2 divisors, whose sum is σ = 398011040. Its totient is φ = 398011038.

The previous prime is 398011037. The next prime is 398011049. The reversal of 398011039 is 930110893.

It is a weak prime.

It is an emirp because it is prime and its reverse (930110893) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 398011039 - 2¹ = 398011037 is a prime.

Together with 398011037, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 398010995 and 398011013.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (398011037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 199005519 + 199005520.

It is an arithmetic number, because the mean of its divisors is an integer number (199005520).

Almost surely, 2^398011039 is an apocalyptic number.

398011039 is a deficient number, since it is larger than the sum of its proper divisors (1).

398011039 is an equidigital number, since it uses as much as digits as its factorization.

398011039 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5832, while the sum is 34.

The square root of 398011039 is about 19950.2140088772. The cubic root of 398011039 is about 735.5830374691.

The spelling of 398011039 in words is "three hundred ninety-eight million, eleven thousand, thirty-nine".