394879085 has 8 divisors (see below), whose sum is σ = 489140736. Its totient is φ = 305712720.

The previous prime is 394879081. The next prime is 394879099. The reversal of 394879085 is 580978493.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 394879085 - 2² = 394879081 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (394879081) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1273649 + ... + 1273958.

It is an arithmetic number, because the mean of its divisors is an integer number (61142592).

Almost surely, 2^394879085 is an apocalyptic number.

It is an amenable number.

394879085 is a deficient number, since it is larger than the sum of its proper divisors (94261651).

394879085 is a wasteful number, since it uses less digits than its factorization.

394879085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2547643.

The product of its (nonzero) digits is 2177280, while the sum is 53.

The square root of 394879085 is about 19871.5647345648. The cubic root of 394879085 is about 733.6485168347.

The spelling of 394879085 in words is "three hundred ninety-four million, eight hundred seventy-nine thousand, eighty-five".