394954671 has 4 divisors (see below), whose sum is σ = 526606232. Its totient is φ = 263303112.

The previous prime is 394954661. The next prime is 394954717. The reversal of 394954671 is 176459493.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 394954671 - 2⁵ = 394954639 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 394954671.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (394954661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 65825776 + ... + 65825781.

It is an arithmetic number, because the mean of its divisors is an integer number (131651558).

Almost surely, 2^394954671 is an apocalyptic number.

394954671 is a deficient number, since it is larger than the sum of its proper divisors (131651561).

394954671 is a wasteful number, since it uses less digits than its factorization.

394954671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131651560.

The product of its digits is 816480, while the sum is 48.

The square root of 394954671 is about 19873.4665068780. The cubic root of 394954671 is about 733.6953244281.

The spelling of 394954671 in words is "three hundred ninety-four million, nine hundred fifty-four thousand, six hundred seventy-one".