390943463 has 2 divisors, whose sum is σ = 390943464. Its totient is φ = 390943462.

The previous prime is 390943417. The next prime is 390943471. The reversal of 390943463 is 364349093.

It is a strong prime.

It is an emirp because it is prime and its reverse (364349093) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 390943463 - 2⁸ = 390943207 is a prime.

It is a super-3 number, since 3×390943463³ (a number of 27 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 390943463.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (390940463) 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, 195471731 + 195471732.

It is an arithmetic number, because the mean of its divisors is an integer number (195471732).

Almost surely, 2^390943463 is an apocalyptic number.

390943463 is a deficient number, since it is larger than the sum of its proper divisors (1).

390943463 is an equidigital number, since it uses as much as digits as its factorization.

390943463 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 209952, while the sum is 41.

The square root of 390943463 is about 19772.2902821095. The cubic root of 390943463 is about 731.2030347707.

The spelling of 390943463 in words is "three hundred ninety million, nine hundred forty-three thousand, four hundred sixty-three".