395620943 has 2 divisors, whose sum is σ = 395620944. Its totient is φ = 395620942.

The previous prime is 395620919. The next prime is 395620961. The reversal of 395620943 is 349026593.

It is a strong prime.

It is an emirp because it is prime and its reverse (349026593) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 395620943 - 2¹² = 395616847 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 395620943.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (395620903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 197810471 + 197810472.

It is an arithmetic number, because the mean of its divisors is an integer number (197810472).

Almost surely, 2^395620943 is an apocalyptic number.

395620943 is a deficient number, since it is larger than the sum of its proper divisors (1).

395620943 is an equidigital number, since it uses as much as digits as its factorization.

395620943 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 174960, while the sum is 41.

The square root of 395620943 is about 19890.2222963948. Note that the first 4 decimals coincide. The cubic root of 395620943 is about 734.1076637503.

The spelling of 395620943 in words is "three hundred ninety-five million, six hundred twenty thousand, nine hundred forty-three".