394825835 has 4 divisors (see below), whose sum is σ = 473791008. Its totient is φ = 315860664.

The previous prime is 394825819. The next prime is 394825861. The reversal of 394825835 is 538528493.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 538528493 = 1451 ⋅371143.

It is a cyclic number.

It is not a de Polignac number, because 394825835 - 2⁴ = 394825819 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 394825835.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39482579 + ... + 39482588.

It is an arithmetic number, because the mean of its divisors is an integer number (118447752).

Almost surely, 2^394825835 is an apocalyptic number.

394825835 is a deficient number, since it is larger than the sum of its proper divisors (78965173).

394825835 is an equidigital number, since it uses as much as digits as its factorization.

394825835 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78965172.

The product of its digits is 1036800, while the sum is 47.

The square root of 394825835 is about 19870.2248351648. The cubic root of 394825835 is about 733.6155375075.

The spelling of 394825835 in words is "three hundred ninety-four million, eight hundred twenty-five thousand, eight hundred thirty-five".