3940273 has 2 divisors, whose sum is σ = 3940274. Its totient is φ = 3940272.

The previous prime is 3940271. The next prime is 3940289. The reversal of 3940273 is 3720493.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2712609 + 1227664 = 1647^2 + 1108^2 .

It is a cyclic number.

It is not a de Polignac number, because 3940273 - 2¹ = 3940271 is a prime.

Together with 3940271, it forms a pair of twin primes.

3940273 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (3940271) 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, 1970136 + 1970137.

It is an arithmetic number, because the mean of its divisors is an integer number (1970137).

Almost surely, 2^3940273 is an apocalyptic number.

It is an amenable number.

3940273 is a deficient number, since it is larger than the sum of its proper divisors (1).

3940273 is an equidigital number, since it uses as much as digits as its factorization.

3940273 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4536, while the sum is 28.

The square root of 3940273 is about 1985.0120906433. The cubic root of 3940273 is about 157.9460505870.

The spelling of 3940273 in words is "three million, nine hundred forty thousand, two hundred seventy-three".