395071605 has 18 divisors (see below), whose sum is σ = 685021974. Its totient is φ = 210633744.

The previous prime is 395071603. The next prime is 395071609. The reversal of 395071605 is 506170593.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 316057284 + 79014321 = 17778^2 + 8889^2 .

It is not a de Polignac number, because 395071605 - 2¹ = 395071603 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 395071605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (395071601) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 131854 + ... + 134816.

Almost surely, 2^395071605 is an apocalyptic number.

It is an amenable number.

395071605 is a deficient number, since it is larger than the sum of its proper divisors (289950369).

395071605 is an frugal number, since it uses more digits than its factorization.

395071605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5937 (or 2971 counting only the distinct ones).

The product of its (nonzero) digits is 28350, while the sum is 36.

The square root of 395071605 is about 19876.4082519956. The cubic root of 395071605 is about 733.7677255328.

The spelling of 395071605 in words is "three hundred ninety-five million, seventy-one thousand, six hundred five".