39934249 has 2 divisors, whose sum is σ = 39934250. Its totient is φ = 39934248.

The previous prime is 39934243. The next prime is 39934273. The reversal of 39934249 is 94243993.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 35760400 + 4173849 = 5980^2 + 2043^2 .

It is an emirp because it is prime and its reverse (94243993) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 39934249 - 2¹³ = 39926057 is a prime.

It is not a weakly prime, because it can be changed into another prime (39934243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19967124 + 19967125.

It is an arithmetic number, because the mean of its divisors is an integer number (19967125).

Almost surely, 2^39934249 is an apocalyptic number.

It is an amenable number.

39934249 is a deficient number, since it is larger than the sum of its proper divisors (1).

39934249 is an equidigital number, since it uses as much as digits as its factorization.

39934249 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 209952, while the sum is 43.

The square root of 39934249 is about 6319.3551095029. The cubic root of 39934249 is about 341.8076988529.

The spelling of 39934249 in words is "thirty-nine million, nine hundred thirty-four thousand, two hundred forty-nine".