768475849 has 2 divisors, whose sum is σ = 768475850. Its totient is φ = 768475848.

The previous prime is 768475847. The next prime is 768475853. The reversal of 768475849 is 948574867.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 748405449 + 20070400 = 27357^2 + 4480^2 .

It is a cyclic number.

It is not a de Polignac number, because 768475849 - 2¹ = 768475847 is a prime.

Together with 768475847, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 768475793 and 768475802.

It is not a weakly prime, because it can be changed into another prime (768475847) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 384237924 + 384237925.

It is an arithmetic number, because the mean of its divisors is an integer number (384237925).

Almost surely, 2^768475849 is an apocalyptic number.

It is an amenable number.

768475849 is a deficient number, since it is larger than the sum of its proper divisors (1).

768475849 is an equidigital number, since it uses as much as digits as its factorization.

768475849 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13547520, while the sum is 58.

The square root of 768475849 is about 27721.3969525347. The cubic root of 768475849 is about 915.9604908018.

The spelling of 768475849 in words is "seven hundred sixty-eight million, four hundred seventy-five thousand, eight hundred forty-nine".