4270909 has 2 divisors, whose sum is σ = 4270910. Its totient is φ = 4270908.

The previous prime is 4270907. The next prime is 4270921. The reversal of 4270909 is 9090724.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3250809 + 1020100 = 1803^2 + 1010^2 .

It is a cyclic number.

It is not a de Polignac number, because 4270909 - 2¹ = 4270907 is a prime.

Together with 4270907, it forms a pair of twin primes.

It is a Chen prime.

4270909 is a modest number, since divided by 909 gives 427 as remainder.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4270907) 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, 2135454 + 2135455.

It is an arithmetic number, because the mean of its divisors is an integer number (2135455).

Almost surely, 2^4270909 is an apocalyptic number.

It is an amenable number.

4270909 is a deficient number, since it is larger than the sum of its proper divisors (1).

4270909 is an equidigital number, since it uses as much as digits as its factorization.

4270909 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4536, while the sum is 31.

The square root of 4270909 is about 2066.6177682387. The cubic root of 4270909 is about 162.2457910926.

The spelling of 4270909 in words is "four million, two hundred seventy thousand, nine hundred nine".