74000917 has 2 divisors, whose sum is σ = 74000918. Its totient is φ = 74000916.

The previous prime is 74000791. The next prime is 74000921. The reversal of 74000917 is 71900047.

Together with previous prime (74000791) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 73977201 + 23716 = 8601^2 + 154^2 .

It is a cyclic number.

It is not a de Polignac number, because 74000917 - 2⁷ = 74000789 is a prime.

It is a super-2 number, since 2×74000917² = 10952271433681778, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (74000977) 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, 37000458 + 37000459.

It is an arithmetic number, because the mean of its divisors is an integer number (37000459).

Almost surely, 2^74000917 is an apocalyptic number.

It is an amenable number.

74000917 is a deficient number, since it is larger than the sum of its proper divisors (1).

74000917 is an equidigital number, since it uses as much as digits as its factorization.

74000917 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1764, while the sum is 28.

The square root of 74000917 is about 8602.3785664199. The cubic root of 74000917 is about 419.8353795514.

The spelling of 74000917 in words is "seventy-four million, nine hundred seventeen", and thus it is an aban number.