10408309 has 2 divisors, whose sum is σ = 10408310. Its totient is φ = 10408308.

The previous prime is 10408231. The next prime is 10408319. The reversal of 10408309 is 90380401.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9922500 + 485809 = 3150^2 + 697^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10408309 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10408319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5204154 + 5204155.

It is an arithmetic number, because the mean of its divisors is an integer number (5204155).

Almost surely, 2^10408309 is an apocalyptic number.

It is an amenable number.

10408309 is a deficient number, since it is larger than the sum of its proper divisors (1).

10408309 is an equidigital number, since it uses as much as digits as its factorization.

10408309 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 10408309 is about 3226.1910978738. The cubic root of 10408309 is about 218.3366918013.

The spelling of 10408309 in words is "ten million, four hundred eight thousand, three hundred nine".