75074473 has 2 divisors, whose sum is σ = 75074474. Its totient is φ = 75074472.

The previous prime is 75074423. The next prime is 75074497. The reversal of 75074473 is 37447057.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 63872064 + 11202409 = 7992^2 + 3347^2 .

It is an emirp because it is prime and its reverse (37447057) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 75074473 - 2¹³ = 75066281 is a prime.

It is not a weakly prime, because it can be changed into another prime (75074423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37537236 + 37537237.

It is an arithmetic number, because the mean of its divisors is an integer number (37537237).

Almost surely, 2^75074473 is an apocalyptic number.

It is an amenable number.

75074473 is a deficient number, since it is larger than the sum of its proper divisors (1).

75074473 is an equidigital number, since it uses as much as digits as its factorization.

75074473 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 82320, while the sum is 37.

The square root of 75074473 is about 8664.5526716617. The cubic root of 75074473 is about 421.8558708327.

The spelling of 75074473 in words is "seventy-five million, seventy-four thousand, four hundred seventy-three".