2309693 has 2 divisors, whose sum is σ = 2309694. Its totient is φ = 2309692.

The previous prime is 2309689. The next prime is 2309707. The reversal of 2309693 is 3969032.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2181529 + 128164 = 1477^2 + 358^2 .

It is a cyclic number.

It is not a de Polignac number, because 2309693 - 2² = 2309689 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2309633) 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, 1154846 + 1154847.

It is an arithmetic number, because the mean of its divisors is an integer number (1154847).

2^2309693 is an apocalyptic number.

It is an amenable number.

2309693 is a deficient number, since it is larger than the sum of its proper divisors (1).

2309693 is an equidigital number, since it uses as much as digits as its factorization.

2309693 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8748, while the sum is 32.

The square root of 2309693 is about 1519.7674164161. The cubic root of 2309693 is about 132.1857844602.

The spelling of 2309693 in words is "two million, three hundred nine thousand, six hundred ninety-three".