39730697 has 2 divisors, whose sum is σ = 39730698. Its totient is φ = 39730696.

The previous prime is 39730693. The next prime is 39730699. The reversal of 39730697 is 79603793.

39730697 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 39300361 + 430336 = 6269^2 + 656^2 .

It is a cyclic number.

It is not a de Polignac number, because 39730697 - 2² = 39730693 is a prime.

Together with 39730699, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (39730693) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19865348 + 19865349.

It is an arithmetic number, because the mean of its divisors is an integer number (19865349).

Almost surely, 2^39730697 is an apocalyptic number.

It is an amenable number.

39730697 is a deficient number, since it is larger than the sum of its proper divisors (1).

39730697 is an equidigital number, since it uses as much as digits as its factorization.

39730697 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 214326, while the sum is 44.

The square root of 39730697 is about 6303.2290930919. The cubic root of 39730697 is about 341.2259576866.

The spelling of 39730697 in words is "thirty-nine million, seven hundred thirty thousand, six hundred ninety-seven".