39498947 has 2 divisors, whose sum is σ = 39498948. Its totient is φ = 39498946.

The previous prime is 39498937. The next prime is 39498959. The reversal of 39498947 is 74989493.

It is a happy number.

39498947 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 is a cyclic number.

It is not a de Polignac number, because 39498947 - 2⁴ = 39498931 is a prime.

It is not a weakly prime, because it can be changed into another prime (39498937) 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, 19749473 + 19749474.

It is an arithmetic number, because the mean of its divisors is an integer number (19749474).

Almost surely, 2^39498947 is an apocalyptic number.

39498947 is a deficient number, since it is larger than the sum of its proper divisors (1).

39498947 is an equidigital number, since it uses as much as digits as its factorization.

39498947 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1959552, while the sum is 53.

The square root of 39498947 is about 6284.8187722479. The cubic root of 39498947 is about 340.5612040779.

The spelling of 39498947 in words is "thirty-nine million, four hundred ninety-eight thousand, nine hundred forty-seven".