39873089 has 2 divisors, whose sum is σ = 39873090. Its totient is φ = 39873088.

The previous prime is 39873079. The next prime is 39873131. The reversal of 39873089 is 98037893.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22090000 + 17783089 = 4700^2 + 4217^2 .

It is a cyclic number.

It is not a de Polignac number, because 39873089 - 2¹² = 39868993 is a prime.

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 (39873019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19936544 + 19936545.

It is an arithmetic number, because the mean of its divisors is an integer number (19936545).

Almost surely, 2^39873089 is an apocalyptic number.

It is an amenable number.

39873089 is a deficient number, since it is larger than the sum of its proper divisors (1).

39873089 is an equidigital number, since it uses as much as digits as its factorization.

39873089 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 326592, while the sum is 47.

The square root of 39873089 is about 6314.5141539156. The cubic root of 39873089 is about 341.6331148757.

The spelling of 39873089 in words is "thirty-nine million, eight hundred seventy-three thousand, eighty-nine".