75234947 has 2 divisors, whose sum is σ = 75234948. Its totient is φ = 75234946.

The previous prime is 75234941. The next prime is 75234967. The reversal of 75234947 is 74943257.

It is a weak prime.

It is an emirp because it is prime and its reverse (74943257) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 75234947 - 2¹⁶ = 75169411 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (75234941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37617473 + 37617474.

It is an arithmetic number, because the mean of its divisors is an integer number (37617474).

Almost surely, 2^75234947 is an apocalyptic number.

75234947 is a deficient number, since it is larger than the sum of its proper divisors (1).

75234947 is an equidigital number, since it uses as much as digits as its factorization.

75234947 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 211680, while the sum is 41.

The square root of 75234947 is about 8673.8081025580. The cubic root of 75234947 is about 422.1562335648.

The spelling of 75234947 in words is "seventy-five million, two hundred thirty-four thousand, nine hundred forty-seven".