390039317 has 2 divisors, whose sum is σ = 390039318. Its totient is φ = 390039316.

The previous prime is 390039263. The next prime is 390039319. The reversal of 390039317 is 713930093.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 213919876 + 176119441 = 14626^2 + 13271^2 .

It is a cyclic number.

It is not a de Polignac number, because 390039317 - 2¹² = 390035221 is a prime.

It is a super-3 number, since 3×390039317³ (a number of 27 digits) contains 333 as substring.

Together with 390039319, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (390039319) 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, 195019658 + 195019659.

It is an arithmetic number, because the mean of its divisors is an integer number (195019659).

Almost surely, 2^390039317 is an apocalyptic number.

It is an amenable number.

390039317 is a deficient number, since it is larger than the sum of its proper divisors (1).

390039317 is an equidigital number, since it uses as much as digits as its factorization.

390039317 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15309, while the sum is 35.

The square root of 390039317 is about 19749.4130798867. The cubic root of 390039317 is about 730.6389083460.

The spelling of 390039317 in words is "three hundred ninety million, thirty-nine thousand, three hundred seventeen".