399341083 has 2 divisors, whose sum is σ = 399341084. Its totient is φ = 399341082.

The previous prime is 399341071. The next prime is 399341153. The reversal of 399341083 is 380143993.

It is a weak prime.

It is an emirp because it is prime and its reverse (380143993) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-399341083 is a prime.

It is a super-2 number, since 2×399341083² = 318946601143225778, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (399341003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 199670541 + 199670542.

It is an arithmetic number, because the mean of its divisors is an integer number (199670542).

Almost surely, 2^399341083 is an apocalyptic number.

399341083 is a deficient number, since it is larger than the sum of its proper divisors (1).

399341083 is an equidigital number, since it uses as much as digits as its factorization.

399341083 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 69984, while the sum is 40.

The square root of 399341083 is about 19983.5202854752. The cubic root of 399341083 is about 736.4014988743.

The spelling of 399341083 in words is "three hundred ninety-nine million, three hundred forty-one thousand, eighty-three".