76245643 has 2 divisors, whose sum is σ = 76245644. Its totient is φ = 76245642.

The previous prime is 76245619. The next prime is 76245649. The reversal of 76245643 is 34654267.

It is a strong prime.

It is an emirp because it is prime and its reverse (34654267) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 76245643 - 2⁹ = 76245131 is a prime.

It is not a weakly prime, because it can be changed into another prime (76245649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38122821 + 38122822.

It is an arithmetic number, because the mean of its divisors is an integer number (38122822).

Almost surely, 2^76245643 is an apocalyptic number.

76245643 is a deficient number, since it is larger than the sum of its proper divisors (1).

76245643 is an equidigital number, since it uses as much as digits as its factorization.

76245643 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 120960, while the sum is 37.

The square root of 76245643 is about 8731.8751136282. The cubic root of 76245643 is about 424.0382274629.

The spelling of 76245643 in words is "seventy-six million, two hundred forty-five thousand, six hundred forty-three".