39340069 has 2 divisors, whose sum is σ = 39340070. Its totient is φ = 39340068.

The previous prime is 39340061. The next prime is 39340087. The reversal of 39340069 is 96004393.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 28037025 + 11303044 = 5295^2 + 3362^2 .

It is an emirp because it is prime and its reverse (96004393) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 39340069 - 2³ = 39340061 is a prime.

It is a super-2 number, since 2×39340069² = 3095282057849522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (39340061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19670034 + 19670035.

It is an arithmetic number, because the mean of its divisors is an integer number (19670035).

Almost surely, 2^39340069 is an apocalyptic number.

It is an amenable number.

39340069 is a deficient number, since it is larger than the sum of its proper divisors (1).

39340069 is an equidigital number, since it uses as much as digits as its factorization.

39340069 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17496, while the sum is 34.

The square root of 39340069 is about 6272.1662127211. The cubic root of 39340069 is about 340.1039733916.

The spelling of 39340069 in words is "thirty-nine million, three hundred forty thousand, sixty-nine".