75473473 has 2 divisors, whose sum is σ = 75473474. Its totient is φ = 75473472.

The previous prime is 75473443. The next prime is 75473501. The reversal of 75473473 is 37437457.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 74528689 + 944784 = 8633^2 + 972^2 .

It is an emirp because it is prime and its reverse (37437457) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 75473473 - 2⁹ = 75472961 is a prime.

It is not a weakly prime, because it can be changed into another prime (75473443) 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, 37736736 + 37736737.

It is an arithmetic number, because the mean of its divisors is an integer number (37736737).

Almost surely, 2^75473473 is an apocalyptic number.

It is an amenable number.

75473473 is a deficient number, since it is larger than the sum of its proper divisors (1).

75473473 is an equidigital number, since it uses as much as digits as its factorization.

75473473 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 246960, while the sum is 40.

The square root of 75473473 is about 8687.5470070671. The cubic root of 75473473 is about 422.6018997239.

The spelling of 75473473 in words is "seventy-five million, four hundred seventy-three thousand, four hundred seventy-three".