67449 has 4 divisors (see below), whose sum is σ = 89936. Its totient is φ = 44964.

The previous prime is 67447. The next prime is 67453. The reversal of 67449 is 94476.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 67449 - 2¹ = 67447 is a prime.

It is a D-number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (67447) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11239 + ... + 11244.

It is an arithmetic number, because the mean of its divisors is an integer number (22484).

2⁶⁷⁴⁴⁹ is an apocalyptic number.

It is an amenable number.

67449 is a deficient number, since it is larger than the sum of its proper divisors (22487).

67449 is a wasteful number, since it uses less digits than its factorization.

67449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22486.

The product of its digits is 6048, while the sum is 30.

The square root of 67449 is about 259.7094530432. The cubic root of 67449 is about 40.7060071987.

The spelling of 67449 in words is "sixty-seven thousand, four hundred forty-nine".