394000469 has 2 divisors, whose sum is σ = 394000470. Its totient is φ = 394000468.

The previous prime is 394000433. The next prime is 394000493. The reversal of 394000469 is 964000493.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 386908900 + 7091569 = 19670^2 + 2663^2 .

It is a cyclic number.

It is not a de Polignac number, because 394000469 - 2¹² = 393996373 is a prime.

It is a super-2 number, since 2×394000469² = 310472739144439922, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (394003469) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 197000234 + 197000235.

It is an arithmetic number, because the mean of its divisors is an integer number (197000235).

Almost surely, 2^394000469 is an apocalyptic number.

It is an amenable number.

394000469 is a deficient number, since it is larger than the sum of its proper divisors (1).

394000469 is an equidigital number, since it uses as much as digits as its factorization.

394000469 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23328, while the sum is 35.

The square root of 394000469 is about 19849.4450552150. The cubic root of 394000469 is about 733.1039839030.

The spelling of 394000469 in words is "three hundred ninety-four million, four hundred sixty-nine", and thus it is an aban number.