74002273 has 2 divisors, whose sum is σ = 74002274. Its totient is φ = 74002272.

The previous prime is 74002267. The next prime is 74002289. The reversal of 74002273 is 37220047.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 56295009 + 17707264 = 7503^2 + 4208^2 .

It is an emirp because it is prime and its reverse (37220047) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-74002273 is a prime.

It is not a weakly prime, because it can be changed into another prime (74002213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37001136 + 37001137.

It is an arithmetic number, because the mean of its divisors is an integer number (37001137).

Almost surely, 2^74002273 is an apocalyptic number.

It is an amenable number.

74002273 is a deficient number, since it is larger than the sum of its proper divisors (1).

74002273 is an equidigital number, since it uses as much as digits as its factorization.

74002273 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2352, while the sum is 25.

The square root of 74002273 is about 8602.4573814696. The cubic root of 74002273 is about 419.8379439038.

It can be divided in two parts, 74002 and 273, that multiplied together give a triangular number (20202546 = T₆₃₅₆).

The spelling of 74002273 in words is "seventy-four million, two thousand, two hundred seventy-three".