788505841 has 2 divisors, whose sum is σ = 788505842. Its totient is φ = 788505840.

The previous prime is 788505827. The next prime is 788505881. The reversal of 788505841 is 148505887.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 725763600 + 62742241 = 26940^2 + 7921^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-788505841 is a prime.

It is a super-2 number, since 2×788505841² = 1243482922582234562, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 788505791 and 788505800.

It is not a weakly prime, because it can be changed into another prime (788505811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 394252920 + 394252921.

It is an arithmetic number, because the mean of its divisors is an integer number (394252921).

Almost surely, 2^788505841 is an apocalyptic number.

It is an amenable number.

788505841 is a deficient number, since it is larger than the sum of its proper divisors (1).

788505841 is an equidigital number, since it uses as much as digits as its factorization.

788505841 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 358400, while the sum is 46.

The square root of 788505841 is about 28080.3461695186. The cubic root of 788505841 is about 923.8503725188.

Adding to 788505841 its sum of digits (46), we get a palindrome (788505887).

The spelling of 788505841 in words is "seven hundred eighty-eight million, five hundred five thousand, eight hundred forty-one".