694740469 has 2 divisors, whose sum is σ = 694740470. Its totient is φ = 694740468.

The previous prime is 694740463. The next prime is 694740533. The reversal of 694740469 is 964047496.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 648364369 + 46376100 = 25463^2 + 6810^2 .

It is a cyclic number.

It is not a de Polignac number, because 694740469 - 2⁵ = 694740437 is a prime.

It is a super-2 number, since 2×694740469² = 965328638532679922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (694740463) 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 as a sum of consecutive naturals, namely, 347370234 + 347370235.

It is an arithmetic number, because the mean of its divisors is an integer number (347370235).

Almost surely, 2^694740469 is an apocalyptic number.

It is an amenable number.

694740469 is a deficient number, since it is larger than the sum of its proper divisors (1).

694740469 is an equidigital number, since it uses as much as digits as its factorization.

694740469 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1306368, while the sum is 49.

The square root of 694740469 is about 26357.9299073353. The cubic root of 694740469 is about 885.6746189894.

The spelling of 694740469 in words is "six hundred ninety-four million, seven hundred forty thousand, four hundred sixty-nine".