74243017 has 2 divisors, whose sum is σ = 74243018. Its totient is φ = 74243016.

The previous prime is 74243009. The next prime is 74243083. The reversal of 74243017 is 71034247.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 68211081 + 6031936 = 8259^2 + 2456^2 .

It is a cyclic number.

It is not a de Polignac number, because 74243017 - 2³ = 74243009 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (74243717) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37121508 + 37121509.

It is an arithmetic number, because the mean of its divisors is an integer number (37121509).

Almost surely, 2^74243017 is an apocalyptic number.

It is an amenable number.

74243017 is a deficient number, since it is larger than the sum of its proper divisors (1).

74243017 is an equidigital number, since it uses as much as digits as its factorization.

74243017 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4704, while the sum is 28.

The square root of 74243017 is about 8616.4387655226. The cubic root of 74243017 is about 420.2927229962.

The spelling of 74243017 in words is "seventy-four million, two hundred forty-three thousand, seventeen".