67546049 has 4 divisors (see below), whose sum is σ = 71519364. Its totient is φ = 63572736.

The previous prime is 67546033. The next prime is 67546057. The reversal of 67546049 is 94064576.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 61905424 + 5640625 = 7868^2 + 2375^2 .

It is a cyclic number.

It is not a de Polignac number, because 67546049 - 2⁴ = 67546033 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 67545997 and 67546015.

It is not an unprimeable number, because it can be changed into a prime (67546019) 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 in 3 ways as a sum of consecutive naturals, for example, 1986632 + ... + 1986665.

It is an arithmetic number, because the mean of its divisors is an integer number (17879841).

Almost surely, 2^67546049 is an apocalyptic number.

It is an amenable number.

67546049 is a deficient number, since it is larger than the sum of its proper divisors (3973315).

67546049 is a wasteful number, since it uses less digits than its factorization.

67546049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3973314.

The product of its (nonzero) digits is 181440, while the sum is 41.

The square root of 67546049 is about 8218.6403376714. The cubic root of 67546049 is about 407.2552112323.

The spelling of 67546049 in words is "sixty-seven million, five hundred forty-six thousand, forty-nine".