4078993 has 2 divisors, whose sum is σ = 4078994. Its totient is φ = 4078992.

The previous prime is 4078969. The next prime is 4078999. The reversal of 4078993 is 3998704.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3359889 + 719104 = 1833^2 + 848^2 .

It is a cyclic number.

It is not a de Polignac number, because 4078993 - 2¹⁷ = 3947921 is a prime.

It is a plaindrome in base 15.

It is not a weakly prime, because it can be changed into another prime (4078999) 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, 2039496 + 2039497.

It is an arithmetic number, because the mean of its divisors is an integer number (2039497).

Almost surely, 2^4078993 is an apocalyptic number.

It is an amenable number.

4078993 is a deficient number, since it is larger than the sum of its proper divisors (1).

4078993 is an equidigital number, since it uses as much as digits as its factorization.

4078993 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 54432, while the sum is 40.

The square root of 4078993 is about 2019.6517026458. The cubic root of 4078993 is about 159.7782474909.

The spelling of 4078993 in words is "four million, seventy-eight thousand, nine hundred ninety-three".