39488621 has 2 divisors, whose sum is σ = 39488622. Its totient is φ = 39488620.

The previous prime is 39488609. The next prime is 39488623. The reversal of 39488621 is 12688493.

39488621 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., 37039396 + 2449225 = 6086^2 + 1565^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-39488621 is a prime.

Together with 39488623, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (39488623) 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, 19744310 + 19744311.

It is an arithmetic number, because the mean of its divisors is an integer number (19744311).

Almost surely, 2^39488621 is an apocalyptic number.

It is an amenable number.

39488621 is a deficient number, since it is larger than the sum of its proper divisors (1).

39488621 is an equidigital number, since it uses as much as digits as its factorization.

39488621 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 82944, while the sum is 41.

The square root of 39488621 is about 6283.9972151490. The cubic root of 39488621 is about 340.5315244557.

The spelling of 39488621 in words is "thirty-nine million, four hundred eighty-eight thousand, six hundred twenty-one".