39607121 has 2 divisors, whose sum is σ = 39607122. Its totient is φ = 39607120.

The previous prime is 39607079. The next prime is 39607123. The reversal of 39607121 is 12170693.

39607121 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., 37945600 + 1661521 = 6160^2 + 1289^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-39607121 is a prime.

Together with 39607123, 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 (39607123) 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, 19803560 + 19803561.

It is an arithmetic number, because the mean of its divisors is an integer number (19803561).

Almost surely, 2^39607121 is an apocalyptic number.

It is an amenable number.

39607121 is a deficient number, since it is larger than the sum of its proper divisors (1).

39607121 is an equidigital number, since it uses as much as digits as its factorization.

39607121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2268, while the sum is 29.

The square root of 39607121 is about 6293.4188641787. The cubic root of 39607121 is about 340.8718139464.

The spelling of 39607121 in words is "thirty-nine million, six hundred seven thousand, one hundred twenty-one".