75708947 has 2 divisors, whose sum is σ = 75708948. Its totient is φ = 75708946.

The previous prime is 75708931. The next prime is 75708959. The reversal of 75708947 is 74980757.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 75708947 - 2⁴ = 75708931 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (75708917) 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, 37854473 + 37854474.

It is an arithmetic number, because the mean of its divisors is an integer number (37854474).

Almost surely, 2^75708947 is an apocalyptic number.

75708947 is a deficient number, since it is larger than the sum of its proper divisors (1).

75708947 is an equidigital number, since it uses as much as digits as its factorization.

75708947 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 493920, while the sum is 47.

The square root of 75708947 is about 8701.0888399096. The cubic root of 75708947 is about 423.0409433772.

The spelling of 75708947 in words is "seventy-five million, seven hundred eight thousand, nine hundred forty-seven".