74845073 has 2 divisors, whose sum is σ = 74845074. Its totient is φ = 74845072.

The previous prime is 74845021. The next prime is 74845079. The reversal of 74845073 is 37054847.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 72046144 + 2798929 = 8488^2 + 1673^2 .

It is a cyclic number.

It is not a de Polignac number, because 74845073 - 2¹² = 74840977 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (74845079) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37422536 + 37422537.

It is an arithmetic number, because the mean of its divisors is an integer number (37422537).

Almost surely, 2^74845073 is an apocalyptic number.

It is an amenable number.

74845073 is a deficient number, since it is larger than the sum of its proper divisors (1).

74845073 is an equidigital number, since it uses as much as digits as its factorization.

74845073 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 94080, while the sum is 38.

The square root of 74845073 is about 8651.3046992925. The cubic root of 74845073 is about 421.4257536042.

The spelling of 74845073 in words is "seventy-four million, eight hundred forty-five thousand, seventy-three".