39547049 has 6 divisors (see below), whose sum is σ = 42010494. Its totient is φ = 37220480.

The previous prime is 39547033. The next prime is 39547111. The reversal of 39547049 is 94074593.

39547049 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 20187049 + 19360000 = 4493^2 + 4400^2 .

It is not a de Polignac number, because 39547049 - 2⁴ = 39547033 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 39546997 and 39547015.

It is not an unprimeable number, because it can be changed into a prime (39547009) 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 in 5 ways as a sum of consecutive naturals, for example, 68132 + ... + 68709.

It is an arithmetic number, because the mean of its divisors is an integer number (7001749).

Almost surely, 2^39547049 is an apocalyptic number.

It is an amenable number.

39547049 is a deficient number, since it is larger than the sum of its proper divisors (2463445).

39547049 is a wasteful number, since it uses less digits than its factorization.

39547049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136875 (or 136858 counting only the distinct ones).

The product of its (nonzero) digits is 136080, while the sum is 41.

The square root of 39547049 is about 6288.6444485278. The cubic root of 39547049 is about 340.6993936660.

The spelling of 39547049 in words is "thirty-nine million, five hundred forty-seven thousand, forty-nine".