76443253 has 2 divisors, whose sum is σ = 76443254. Its totient is φ = 76443252.

The previous prime is 76443239. The next prime is 76443259. The reversal of 76443253 is 35234467.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 71876484 + 4566769 = 8478^2 + 2137^2 .

It is an emirp because it is prime and its reverse (35234467) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 76443253 - 2⁹ = 76442741 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (76443259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38221626 + 38221627.

It is an arithmetic number, because the mean of its divisors is an integer number (38221627).

Almost surely, 2^76443253 is an apocalyptic number.

It is an amenable number.

76443253 is a deficient number, since it is larger than the sum of its proper divisors (1).

76443253 is an equidigital number, since it uses as much as digits as its factorization.

76443253 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 60480, while the sum is 34.

The square root of 76443253 is about 8743.1832303801. The cubic root of 76443253 is about 424.4042457846.

The spelling of 76443253 in words is "seventy-six million, four hundred forty-three thousand, two hundred fifty-three".