4273909 has 2 divisors, whose sum is σ = 4273910. Its totient is φ = 4273908.

The previous prime is 4273903. The next prime is 4273937. The reversal of 4273909 is 9093724.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2640625 + 1633284 = 1625^2 + 1278^2 .

It is a cyclic number.

It is not a de Polignac number, because 4273909 - 2⁹ = 4273397 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4273903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2136954 + 2136955.

It is an arithmetic number, because the mean of its divisors is an integer number (2136955).

Almost surely, 2^4273909 is an apocalyptic number.

It is an amenable number.

4273909 is a deficient number, since it is larger than the sum of its proper divisors (1).

4273909 is an equidigital number, since it uses as much as digits as its factorization.

4273909 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13608, while the sum is 34.

The square root of 4273909 is about 2067.3434644490. The cubic root of 4273909 is about 162.2837707867.

The spelling of 4273909 in words is "four million, two hundred seventy-three thousand, nine hundred nine".