788869 has 2 divisors, whose sum is σ = 788870. Its totient is φ = 788868.

The previous prime is 788867. The next prime is 788873. The reversal of 788869 is 968887.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 744769 + 44100 = 863^2 + 210^2 .

It is a cyclic number.

It is not a de Polignac number, because 788869 - 2¹ = 788867 is a prime.

It is a super-2 number, since 2×788869² = 1244628598322, which contains 22 as substring.

Together with 788867, it forms a pair of twin primes.

It is a Chen prime.

788869 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (788863) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 394434 + 394435.

It is an arithmetic number, because the mean of its divisors is an integer number (394435).

2⁷⁸⁸⁸⁶⁹ is an apocalyptic number.

It is an amenable number.

788869 is a deficient number, since it is larger than the sum of its proper divisors (1).

788869 is an equidigital number, since it uses as much as digits as its factorization.

788869 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 193536, while the sum is 46.

The square root of 788869 is about 888.1829766439. The cubic root of 788869 is about 92.3992182114.

The spelling of 788869 in words is "seven hundred eighty-eight thousand, eight hundred sixty-nine".