394933062969 has 27 divisors (see below), whose sum is σ = 582985336687. Its totient is φ = 257629005024.

The previous prime is 394933062947. The next prime is 394933062973. The reversal of 394933062969 is 969260339493.

The square root of 394933062969 is 628437.

It is a perfect power (a square), and thus also a powerful number.

394933062969 is a `hidden beast` number, since 3 + 9 + 4 + 9 + 330 + 6 + 296 + 9 = 666.

It can be written as a sum of positive squares in only one way, i.e., 277344423225 + 117588639744 = 526635^2 + 342912^2 .

It is not a de Polignac number, because 394933062969 - 2²⁵ = 394899508537 is a prime.

It is a super-2 number, since 2×394933062969² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (394933062929) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 88607389 + ... + 88611845.

Almost surely, 2^394933062969 is an apocalyptic number.

394933062969 is the 628437-th square number.

394933062969 is the 314219-th centered octagonal number.

It is an amenable number.

394933062969 is a deficient number, since it is larger than the sum of its proper divisors (188052273718).

394933062969 is an frugal number, since it uses more digits than its factorization.

394933062969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9014 (or 4507 counting only the distinct ones).

The product of its (nonzero) digits is 51018336, while the sum is 63.

The spelling of 394933062969 in words is "three hundred ninety-four billion, nine hundred thirty-three million, sixty-two thousand, nine hundred sixty-nine".