39629489 has 2 divisors, whose sum is σ = 39629490. Its totient is φ = 39629488.

The previous prime is 39629477. The next prime is 39629503. The reversal of 39629489 is 98492693.

39629489 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 35760400 + 3869089 = 5980^2 + 1967^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-39629489 is a prime.

It is a super-2 number, since 2×39629489² = 3140992796802242, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (39629419) 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, 19814744 + 19814745.

It is an arithmetic number, because the mean of its divisors is an integer number (19814745).

Almost surely, 2^39629489 is an apocalyptic number.

It is an amenable number.

39629489 is a deficient number, since it is larger than the sum of its proper divisors (1).

39629489 is an equidigital number, since it uses as much as digits as its factorization.

39629489 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 839808, while the sum is 50.

The square root of 39629489 is about 6295.1957078394. The cubic root of 39629489 is about 340.9359706407.

The spelling of 39629489 in words is "thirty-nine million, six hundred twenty-nine thousand, four hundred eighty-nine".