7823883257 has 2 divisors, whose sum is σ = 7823883258. Its totient is φ = 7823883256.

The previous prime is 7823883229. The next prime is 7823883311. The reversal of 7823883257 is 7523883287.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7501465321 + 322417936 = 86611^2 + 17956^2 .

It is a cyclic number.

It is not a de Polignac number, because 7823883257 - 2²⁶ = 7756774393 is a prime.

It is a super-2 number, since 2×7823883257² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 7823883199 and 7823883208.

It is not a weakly prime, because it can be changed into another prime (7823882257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3911941628 + 3911941629.

It is an arithmetic number, because the mean of its divisors is an integer number (3911941629).

Almost surely, 2^7823883257 is an apocalyptic number.

It is an amenable number.

7823883257 is a deficient number, since it is larger than the sum of its proper divisors (1).

7823883257 is an equidigital number, since it uses as much as digits as its factorization.

7823883257 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4515840, while the sum is 53.

The square root of 7823883257 is about 88452.7176349037. The cubic root of 7823883257 is about 1985.2145696266.

The spelling of 7823883257 in words is "seven billion, eight hundred twenty-three million, eight hundred eighty-three thousand, two hundred fifty-seven".