394648895 has 12 divisors (see below), whose sum is σ = 483882744. Its totient is φ = 308993040.

The previous prime is 394648871. The next prime is 394648901. The reversal of 394648895 is 598846493.

It is a happy number.

It is not a de Polignac number, because 394648895 - 2⁶ = 394648831 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 394648895.

It is a congruent number.

It is an unprimeable number.

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 in 11 ways as a sum of consecutive naturals, for example, 6821 + ... + 28910.

It is an arithmetic number, because the mean of its divisors is an integer number (40323562).

Almost surely, 2^394648895 is an apocalyptic number.

394648895 is a deficient number, since it is larger than the sum of its proper divisors (89233849).

394648895 is an equidigital number, since it uses as much as digits as its factorization.

394648895 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35830 (or 35783 counting only the distinct ones).

The product of its digits is 7464960, while the sum is 56.

The square root of 394648895 is about 19865.7719457362. The cubic root of 394648895 is about 733.5059319403.

The spelling of 394648895 in words is "three hundred ninety-four million, six hundred forty-eight thousand, eight hundred ninety-five".