76343893 has 2 divisors, whose sum is σ = 76343894. Its totient is φ = 76343892.

The previous prime is 76343867. The next prime is 76343977. The reversal of 76343893 is 39834367.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 54272689 + 22071204 = 7367^2 + 4698^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-76343893 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (76343093) 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, 38171946 + 38171947.

It is an arithmetic number, because the mean of its divisors is an integer number (38171947).

Almost surely, 2^76343893 is an apocalyptic number.

It is an amenable number.

76343893 is a deficient number, since it is larger than the sum of its proper divisors (1).

76343893 is an equidigital number, since it uses as much as digits as its factorization.

76343893 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 326592, while the sum is 43.

The square root of 76343893 is about 8737.4992417739. The cubic root of 76343893 is about 424.2202875865.

The spelling of 76343893 in words is "seventy-six million, three hundred forty-three thousand, eight hundred ninety-three".