394084669 has 8 divisors (see below), whose sum is σ = 441530208. Its totient is φ = 348575760.

The previous prime is 394084657. The next prime is 394084699. The reversal of 394084669 is 966480493.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-394084669 is a prime.

It is a super-2 number, since 2×394084669² = 310605452681679122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (394084699) 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 7 ways as a sum of consecutive naturals, for example, 483727 + ... + 484540.

It is an arithmetic number, because the mean of its divisors is an integer number (55191276).

Almost surely, 2^394084669 is an apocalyptic number.

It is an amenable number.

394084669 is a deficient number, since it is larger than the sum of its proper divisors (47445539).

394084669 is a wasteful number, since it uses less digits than its factorization.

394084669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 968315.

The product of its (nonzero) digits is 1119744, while the sum is 49.

The square root of 394084669 is about 19851.5659080084. The cubic root of 394084669 is about 733.1562029262.

The spelling of 394084669 in words is "three hundred ninety-four million, eighty-four thousand, six hundred sixty-nine".