74068493 has 2 divisors, whose sum is σ = 74068494. Its totient is φ = 74068492.

The previous prime is 74068483. The next prime is 74068529. The reversal of 74068493 is 39486047.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 63329764 + 10738729 = 7958^2 + 3277^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-74068493 is a prime.

It is a super-4 number, since 4×74068493⁴ (a number of 33 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 74068493.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (74068483) 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, 37034246 + 37034247.

It is an arithmetic number, because the mean of its divisors is an integer number (37034247).

Almost surely, 2^74068493 is an apocalyptic number.

It is an amenable number.

74068493 is a deficient number, since it is larger than the sum of its proper divisors (1).

74068493 is an equidigital number, since it uses as much as digits as its factorization.

74068493 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 145152, while the sum is 41.

The square root of 74068493 is about 8606.3054210271. The cubic root of 74068493 is about 419.9631354643.

The spelling of 74068493 in words is "seventy-four million, sixty-eight thousand, four hundred ninety-three".