74047243 has 2 divisors, whose sum is σ = 74047244. Its totient is φ = 74047242.

The previous prime is 74047187. The next prime is 74047273. The reversal of 74047243 is 34274047.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 74047243 - 2¹³ = 74039051 is a prime.

It is not a weakly prime, because it can be changed into another prime (74047273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37023621 + 37023622.

It is an arithmetic number, because the mean of its divisors is an integer number (37023622).

Almost surely, 2^74047243 is an apocalyptic number.

74047243 is a deficient number, since it is larger than the sum of its proper divisors (1).

74047243 is an equidigital number, since it uses as much as digits as its factorization.

74047243 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18816, while the sum is 31.

The square root of 74047243 is about 8605.0707725155. The cubic root of 74047243 is about 419.9229696221.

The spelling of 74047243 in words is "seventy-four million, forty-seven thousand, two hundred forty-three".