76747399 has 2 divisors, whose sum is σ = 76747400. Its totient is φ = 76747398.

The previous prime is 76747397. The next prime is 76747423. The reversal of 76747399 is 99374767.

It is a weak prime.

It is an emirp because it is prime and its reverse (99374767) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 76747399 - 2¹ = 76747397 is a prime.

Together with 76747397, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (76747397) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38373699 + 38373700.

It is an arithmetic number, because the mean of its divisors is an integer number (38373700).

Almost surely, 2^76747399 is an apocalyptic number.

76747399 is a deficient number, since it is larger than the sum of its proper divisors (1).

76747399 is an equidigital number, since it uses as much as digits as its factorization.

76747399 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2000376, while the sum is 52.

The square root of 76747399 is about 8760.5592857991. The cubic root of 76747399 is about 424.9663622743.

The spelling of 76747399 in words is "seventy-six million, seven hundred forty-seven thousand, three hundred ninety-nine".