808769047 has 2 divisors, whose sum is σ = 808769048. Its totient is φ = 808769046.

The previous prime is 808769021. The next prime is 808769053. The reversal of 808769047 is 740967808.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 808769047 - 2²³ = 800380439 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (808769947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 404384523 + 404384524.

It is an arithmetic number, because the mean of its divisors is an integer number (404384524).

Almost surely, 2^808769047 is an apocalyptic number.

808769047 is a deficient number, since it is larger than the sum of its proper divisors (1).

808769047 is an equidigital number, since it uses as much as digits as its factorization.

808769047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 677376, while the sum is 49.

The square root of 808769047 is about 28438.8650793241. The cubic root of 808769047 is about 931.6973077922.

The spelling of 808769047 in words is "eight hundred eight million, seven hundred sixty-nine thousand, forty-seven".