2193739 has 2 divisors, whose sum is σ = 2193740. Its totient is φ = 2193738.

The previous prime is 2193733. The next prime is 2193749. The reversal of 2193739 is 9373912.

2193739 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2193739 - 2⁵ = 2193707 is a prime.

It is not a weakly prime, because it can be changed into another prime (2193733) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1096869 + 1096870.

It is an arithmetic number, because the mean of its divisors is an integer number (1096870).

2^2193739 is an apocalyptic number.

2193739 is a deficient number, since it is larger than the sum of its proper divisors (1).

2193739 is an equidigital number, since it uses as much as digits as its factorization.

2193739 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10206, while the sum is 34.

The square root of 2193739 is about 1481.1276109775. The cubic root of 2193739 is about 129.9356486240.

The spelling of 2193739 in words is "two million, one hundred ninety-three thousand, seven hundred thirty-nine".