394574963 has 2 divisors, whose sum is σ = 394574964. Its totient is φ = 394574962.

The previous prime is 394574953. The next prime is 394574989. The reversal of 394574963 is 369475493.

It is a weak prime.

It is an emirp because it is prime and its reverse (369475493) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 394574963 - 2¹⁰ = 394573939 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (394574953) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 197287481 + 197287482.

It is an arithmetic number, because the mean of its divisors is an integer number (197287482).

Almost surely, 2^394574963 is an apocalyptic number.

394574963 is a deficient number, since it is larger than the sum of its proper divisors (1).

394574963 is an equidigital number, since it uses as much as digits as its factorization.

394574963 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2449440, while the sum is 50.

The square root of 394574963 is about 19863.9110700788. The cubic root of 394574963 is about 733.4601250235.

The spelling of 394574963 in words is "three hundred ninety-four million, five hundred seventy-four thousand, nine hundred sixty-three".