39730903 has 2 divisors, whose sum is σ = 39730904. Its totient is φ = 39730902.

The previous prime is 39730897. The next prime is 39730931. The reversal of 39730903 is 30903793.

It is a weak prime.

It is an emirp because it is prime and its reverse (30903793) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-39730903 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (39730993) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19865451 + 19865452.

It is an arithmetic number, because the mean of its divisors is an integer number (19865452).

Almost surely, 2^39730903 is an apocalyptic number.

39730903 is a deficient number, since it is larger than the sum of its proper divisors (1).

39730903 is an equidigital number, since it uses as much as digits as its factorization.

39730903 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15309, while the sum is 34.

The square root of 39730903 is about 6303.2454339015. The cubic root of 39730903 is about 341.2265474273.

The spelling of 39730903 in words is "thirty-nine million, seven hundred thirty thousand, nine hundred three".