39040207 has 2 divisors, whose sum is σ = 39040208. Its totient is φ = 39040206.

The previous prime is 39040151. The next prime is 39040219. The reversal of 39040207 is 70204093.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-39040207 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (39040247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19520103 + 19520104.

It is an arithmetic number, because the mean of its divisors is an integer number (19520104).

Almost surely, 2^39040207 is an apocalyptic number.

39040207 is a deficient number, since it is larger than the sum of its proper divisors (1).

39040207 is an equidigital number, since it uses as much as digits as its factorization.

39040207 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1512, while the sum is 25.

The square root of 39040207 is about 6248.2163054747. The cubic root of 39040207 is about 339.2376431121.

The spelling of 39040207 in words is "thirty-nine million, forty thousand, two hundred seven".