395899379 has 2 divisors, whose sum is σ = 395899380. Its totient is φ = 395899378.

The previous prime is 395899373. The next prime is 395899393. The reversal of 395899379 is 973998593.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 395899379 - 2⁴ = 395899363 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (395899373) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 197949689 + 197949690.

It is an arithmetic number, because the mean of its divisors is an integer number (197949690).

Almost surely, 2^395899379 is an apocalyptic number.

395899379 is a deficient number, since it is larger than the sum of its proper divisors (1).

395899379 is an equidigital number, since it uses as much as digits as its factorization.

395899379 is an evil number, because the sum of its binary digits is even.

The product of its digits is 16533720, while the sum is 62.

The square root of 395899379 is about 19897.2203837622. The cubic root of 395899379 is about 734.2798437721.

The spelling of 395899379 in words is "three hundred ninety-five million, eight hundred ninety-nine thousand, three hundred seventy-nine".