67670449 has 8 divisors (see below), whose sum is σ = 84368448. Its totient is φ = 52730160.

The previous prime is 67670431. The next prime is 67670461. The reversal of 67670449 is 94407676.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 67670449 - 2⁵ = 67670417 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (67670429) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 439342 + ... + 439495.

It is an arithmetic number, because the mean of its divisors is an integer number (10546056).

Almost surely, 2^67670449 is an apocalyptic number.

It is an amenable number.

67670449 is a deficient number, since it is larger than the sum of its proper divisors (16697999).

67670449 is a wasteful number, since it uses less digits than its factorization.

67670449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 878855.

The product of its (nonzero) digits is 254016, while the sum is 43.

The square root of 67670449 is about 8226.2050181113. The cubic root of 67670449 is about 407.5050727661.

The spelling of 67670449 in words is "sixty-seven million, six hundred seventy thousand, four hundred forty-nine".