75172673 has 2 divisors, whose sum is σ = 75172674. Its totient is φ = 75172672.

The previous prime is 75172637. The next prime is 75172711. The reversal of 75172673 is 37627157.

Together with previous prime (75172637) it forms an Ormiston pair, because they use the same digits, order apart.

It is an a-pointer prime, because the next prime (75172711) can be obtained adding 75172673 to its sum of digits (38).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 38291344 + 36881329 = 6188^2 + 6073^2 .

It is a cyclic number.

It is not a de Polignac number, because 75172673 - 2⁶ = 75172609 is a prime.

It is not a weakly prime, because it can be changed into another prime (75172633) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37586336 + 37586337.

It is an arithmetic number, because the mean of its divisors is an integer number (37586337).

Almost surely, 2^75172673 is an apocalyptic number.

It is an amenable number.

75172673 is a deficient number, since it is larger than the sum of its proper divisors (1).

75172673 is an equidigital number, since it uses as much as digits as its factorization.

75172673 is an evil number, because the sum of its binary digits is even.

The product of its digits is 61740, while the sum is 38.

The square root of 75172673 is about 8670.2175866584. The cubic root of 75172673 is about 422.0397247032.

The spelling of 75172673 in words is "seventy-five million, one hundred seventy-two thousand, six hundred seventy-three".