768447541 has 2 divisors, whose sum is σ = 768447542. Its totient is φ = 768447540.

The previous prime is 768447521. The next prime is 768447551. The reversal of 768447541 is 145744867.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 706762225 + 61685316 = 26585^2 + 7854^2 .

It is an emirp because it is prime and its reverse (145744867) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 768447541 - 2¹⁷ = 768316469 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 768447491 and 768447500.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (768447521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 384223770 + 384223771.

It is an arithmetic number, because the mean of its divisors is an integer number (384223771).

Almost surely, 2^768447541 is an apocalyptic number.

It is an amenable number.

768447541 is a deficient number, since it is larger than the sum of its proper divisors (1).

768447541 is an equidigital number, since it uses as much as digits as its factorization.

768447541 is an evil number, because the sum of its binary digits is even.

The product of its digits is 752640, while the sum is 46.

The square root of 768447541 is about 27720.8863675028. The cubic root of 768447541 is about 915.9492437218.

It can be divided in two parts, 7684 and 47541, that added together give a square (55225 = 235²).

The spelling of 768447541 in words is "seven hundred sixty-eight million, four hundred forty-seven thousand, five hundred forty-one".