34408009 has 2 divisors, whose sum is σ = 34408010. Its totient is φ = 34408008.

The previous prime is 34407991. The next prime is 34408013. The reversal of 34408009 is 90080443.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 33315984 + 1092025 = 5772^2 + 1045^2 .

It is a cyclic number.

It is not a de Polignac number, because 34408009 - 2¹⁹ = 33883721 is a prime.

It is a super-2 number, since 2×34408009² = 2367822166688162, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (34408019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17204004 + 17204005.

It is an arithmetic number, because the mean of its divisors is an integer number (17204005).

Almost surely, 2^34408009 is an apocalyptic number.

It is an amenable number.

34408009 is a deficient number, since it is larger than the sum of its proper divisors (1).

34408009 is an equidigital number, since it uses as much as digits as its factorization.

34408009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 34408009 is about 5865.8340412937. The cubic root of 34408009 is about 325.2519041096.

It can be divided in two parts, 3440 and 8009, that added together give a square (11449 = 107²).

The spelling of 34408009 in words is "thirty-four million, four hundred eight thousand, nine".