390449327 has 2 divisors, whose sum is σ = 390449328. Its totient is φ = 390449326.

The previous prime is 390449317. The next prime is 390449329. The reversal of 390449327 is 723944093.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 390449327 - 2⁶ = 390449263 is a prime.

Together with 390449329, 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 (390449329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 195224663 + 195224664.

It is an arithmetic number, because the mean of its divisors is an integer number (195224664).

Almost surely, 2^390449327 is an apocalyptic number.

390449327 is a deficient number, since it is larger than the sum of its proper divisors (1).

390449327 is an equidigital number, since it uses as much as digits as its factorization.

390449327 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 163296, while the sum is 41.

The square root of 390449327 is about 19759.7906618466. The cubic root of 390449327 is about 730.8948349819.

The spelling of 390449327 in words is "three hundred ninety million, four hundred forty-nine thousand, three hundred twenty-seven".