808747469 has 2 divisors, whose sum is σ = 808747470. Its totient is φ = 808747468.

The previous prime is 808747463. The next prime is 808747481. The reversal of 808747469 is 964747808.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 641355625 + 167391844 = 25325^2 + 12938^2 .

It is a cyclic number.

It is not a de Polignac number, because 808747469 - 2²⁸ = 540312013 is a prime.

It is a super-2 number, since 2×808747469² = 1308144937227811922, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 808747469.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (808747463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 404373734 + 404373735.

It is an arithmetic number, because the mean of its divisors is an integer number (404373735).

Almost surely, 2^808747469 is an apocalyptic number.

It is an amenable number.

808747469 is a deficient number, since it is larger than the sum of its proper divisors (1).

808747469 is an equidigital number, since it uses as much as digits as its factorization.

808747469 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2709504, while the sum is 53.

The square root of 808747469 is about 28438.4857015981. The cubic root of 808747469 is about 931.6890218077.

The spelling of 808747469 in words is "eight hundred eight million, seven hundred forty-seven thousand, four hundred sixty-nine".