808749479 has 2 divisors, whose sum is σ = 808749480. Its totient is φ = 808749478.

The previous prime is 808749467. The next prime is 808749493. The reversal of 808749479 is 974947808.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 808749479 - 2⁴ = 808749463 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (808749499) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 404374739 + 404374740.

It is an arithmetic number, because the mean of its divisors is an integer number (404374740).

Almost surely, 2^808749479 is an apocalyptic number.

808749479 is a deficient number, since it is larger than the sum of its proper divisors (1).

808749479 is an equidigital number, since it uses as much as digits as its factorization.

808749479 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4064256, while the sum is 56.

The square root of 808749479 is about 28438.5210410106. The cubic root of 808749479 is about 931.6897936570.

The spelling of 808749479 in words is "eight hundred eight million, seven hundred forty-nine thousand, four hundred seventy-nine".