4009427693 has 6 divisors (see below), whose sum is σ = 4045236234. Its totient is φ = 3973933376.

The previous prime is 4009427663. The next prime is 4009427701. The reversal of 4009427693 is 3967249004.

It can be written as a sum of positive squares in 3 ways, for example, as 67848169 + 3941579524 = 8237^2 + 62782^2 .

It is not a de Polignac number, because 4009427693 - 2¹⁴ = 4009411309 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4009427663) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 144230 + ... + 169767.

It is an arithmetic number, because the mean of its divisors is an integer number (674206039).

Almost surely, 2^4009427693 is an apocalyptic number.

It is an amenable number.

4009427693 is a deficient number, since it is larger than the sum of its proper divisors (35808541).

4009427693 is an equidigital number, since it uses as much as digits as its factorization.

4009427693 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 314223 (or 314110 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 44.

The square root of 4009427693 is about 63320.0417956274. The cubic root of 4009427693 is about 1588.6472009367.

The spelling of 4009427693 in words is "four billion, nine million, four hundred twenty-seven thousand, six hundred ninety-three".