8909437 has 2 divisors, whose sum is σ = 8909438. Its totient is φ = 8909436.

The previous prime is 8909401. The next prime is 8909449. The reversal of 8909437 is 7349098.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6895876 + 2013561 = 2626^2 + 1419^2 .

It is a cyclic number.

It is not a de Polignac number, because 8909437 - 2¹¹ = 8907389 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 8909437.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8909497) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4454718 + 4454719.

It is an arithmetic number, because the mean of its divisors is an integer number (4454719).

Almost surely, 2^8909437 is an apocalyptic number.

It is an amenable number.

8909437 is a deficient number, since it is larger than the sum of its proper divisors (1).

8909437 is an equidigital number, since it uses as much as digits as its factorization.

8909437 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 54432, while the sum is 40.

The square root of 8909437 is about 2984.8680037817. The cubic root of 8909437 is about 207.3083302895.

The spelling of 8909437 in words is "eight million, nine hundred nine thousand, four hundred thirty-seven".