74450617 has 2 divisors, whose sum is σ = 74450618. Its totient is φ = 74450616.

The previous prime is 74450581. The next prime is 74450639. The reversal of 74450617 is 71605447.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 51897616 + 22553001 = 7204^2 + 4749^2 .

It is an emirp because it is prime and its reverse (71605447) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 74450617 - 2¹⁹ = 73926329 is a prime.

It is not a weakly prime, because it can be changed into another prime (74450647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37225308 + 37225309.

It is an arithmetic number, because the mean of its divisors is an integer number (37225309).

Almost surely, 2^74450617 is an apocalyptic number.

It is an amenable number.

74450617 is a deficient number, since it is larger than the sum of its proper divisors (1).

74450617 is an equidigital number, since it uses as much as digits as its factorization.

74450617 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23520, while the sum is 34.

The square root of 74450617 is about 8628.4770962204. The cubic root of 74450617 is about 420.6841024277.

The spelling of 74450617 in words is "seventy-four million, four hundred fifty thousand, six hundred seventeen".