395604479 has 2 divisors, whose sum is σ = 395604480. Its totient is φ = 395604478.

The previous prime is 395604427. The next prime is 395604487. The reversal of 395604479 is 974406593.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (974406593) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 395604479 - 2¹⁶ = 395538943 is a prime.

It is a super-2 number, since 2×395604479² = 313005807609722882, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (395604379) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 197802239 + 197802240.

It is an arithmetic number, because the mean of its divisors is an integer number (197802240).

Almost surely, 2^395604479 is an apocalyptic number.

395604479 is a deficient number, since it is larger than the sum of its proper divisors (1).

395604479 is an equidigital number, since it uses as much as digits as its factorization.

395604479 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 816480, while the sum is 47.

The square root of 395604479 is about 19889.8084203946. The cubic root of 395604479 is about 734.0974801672.

The spelling of 395604479 in words is "three hundred ninety-five million, six hundred four thousand, four hundred seventy-nine".