394969 has 2 divisors, whose sum is σ = 394970. Its totient is φ = 394968.

The previous prime is 394967. The next prime is 394981. The reversal of 394969 is 969493.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 360000 + 34969 = 600^2 + 187^2 .

It is a cyclic number.

It is not a de Polignac number, because 394969 - 2¹ = 394967 is a prime.

It is a super-2 number, since 2×394969² = 312001021922, which contains 22 as substring.

Together with 394967, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (394963) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 197484 + 197485.

It is an arithmetic number, because the mean of its divisors is an integer number (197485).

2³⁹⁴⁹⁶⁹ is an apocalyptic number.

It is an amenable number.

394969 is a deficient number, since it is larger than the sum of its proper divisors (1).

394969 is an equidigital number, since it uses as much as digits as its factorization.

394969 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 52488, while the sum is 40.

The square root of 394969 is about 628.4655917391. The cubic root of 394969 is about 73.3704197171.

The spelling of 394969 in words is "three hundred ninety-four thousand, nine hundred sixty-nine".