74087317 has 2 divisors, whose sum is σ = 74087318. Its totient is φ = 74087316.

The previous prime is 74087311. The next prime is 74087333. The reversal of 74087317 is 71378047.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 71132356 + 2954961 = 8434^2 + 1719^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-74087317 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (74087311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37043658 + 37043659.

It is an arithmetic number, because the mean of its divisors is an integer number (37043659).

Almost surely, 2^74087317 is an apocalyptic number.

It is an amenable number.

74087317 is a deficient number, since it is larger than the sum of its proper divisors (1).

74087317 is an equidigital number, since it uses as much as digits as its factorization.

74087317 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32928, while the sum is 37.

The square root of 74087317 is about 8607.3989683295. The cubic root of 74087317 is about 419.9987093687.

The spelling of 74087317 in words is "seventy-four million, eighty-seven thousand, three hundred seventeen".