74089517 has 2 divisors, whose sum is σ = 74089518. Its totient is φ = 74089516.

The previous prime is 74089513. The next prime is 74089523. The reversal of 74089517 is 71598047.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 59197636 + 14891881 = 7694^2 + 3859^2 .

It is an emirp because it is prime and its reverse (71598047) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 74089517 - 2² = 74089513 is a prime.

It is a super-3 number, since 3×74089517³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (74089513) 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, 37044758 + 37044759.

It is an arithmetic number, because the mean of its divisors is an integer number (37044759).

Almost surely, 2^74089517 is an apocalyptic number.

It is an amenable number.

74089517 is a deficient number, since it is larger than the sum of its proper divisors (1).

74089517 is an equidigital number, since it uses as much as digits as its factorization.

74089517 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 70560, while the sum is 41.

The square root of 74089517 is about 8607.5267644080. The cubic root of 74089517 is about 420.0028665715.

The spelling of 74089517 in words is "seventy-four million, eighty-nine thousand, five hundred seventeen".