4028293 has 2 divisors, whose sum is σ = 4028294. Its totient is φ = 4028292.

The previous prime is 4028287. The next prime is 4028309. The reversal of 4028293 is 3928204.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2304324 + 1723969 = 1518^2 + 1313^2 .

It is a cyclic number.

It is not a de Polignac number, because 4028293 - 2⁵ = 4028261 is a prime.

It is an Ulam number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4028273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2014146 + 2014147.

It is an arithmetic number, because the mean of its divisors is an integer number (2014147).

Almost surely, 2^4028293 is an apocalyptic number.

It is an amenable number.

4028293 is a deficient number, since it is larger than the sum of its proper divisors (1).

4028293 is an equidigital number, since it uses as much as digits as its factorization.

4028293 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 4028293 is about 2007.0607863241. The cubic root of 4028293 is about 159.1134956973.

The spelling of 4028293 in words is "four million, twenty-eight thousand, two hundred ninety-three".