4000273 has 2 divisors, whose sum is σ = 4000274. Its totient is φ = 4000272.

The previous prime is 4000267. The next prime is 4000277. The reversal of 4000273 is 3720004.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3972049 + 28224 = 1993^2 + 168^2 .

It is a cyclic number.

It is not a de Polignac number, because 4000273 - 2¹³ = 3992081 is a prime.

4000273 is a modest number, since divided by 273 gives 4 as remainder.

It is not a weakly prime, because it can be changed into another prime (4000277) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2000136 + 2000137.

It is an arithmetic number, because the mean of its divisors is an integer number (2000137).

Almost surely, 2^4000273 is an apocalyptic number.

It is an amenable number.

4000273 is a deficient number, since it is larger than the sum of its proper divisors (1).

4000273 is an equidigital number, since it uses as much as digits as its factorization.

4000273 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 168, while the sum is 16.

The square root of 4000273 is about 2000.0682488355. The cubic root of 4000273 is about 158.7437164521.

Adding to 4000273 its reverse (3720004), we get a palindrome (7720277).

The spelling of 4000273 in words is "four million, two hundred seventy-three", and thus it is an aban number.