39344009 has 2 divisors, whose sum is σ = 39344010. Its totient is φ = 39344008.

The previous prime is 39343979. The next prime is 39344017. The reversal of 39344009 is 90044393.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22534009 + 16810000 = 4747^2 + 4100^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-39344009 is a prime.

It is not a weakly prime, because it can be changed into another prime (39344059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19672004 + 19672005.

It is an arithmetic number, because the mean of its divisors is an integer number (19672005).

Almost surely, 2^39344009 is an apocalyptic number.

It is an amenable number.

39344009 is a deficient number, since it is larger than the sum of its proper divisors (1).

39344009 is an equidigital number, since it uses as much as digits as its factorization.

39344009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11664, while the sum is 32.

The square root of 39344009 is about 6272.4802909216. The cubic root of 39344009 is about 340.1153270822.

The spelling of 39344009 in words is "thirty-nine million, three hundred forty-four thousand, nine".