67661008 has 10 divisors (see below), whose sum is σ = 131093234. Its totient is φ = 33830496.

The previous prime is 67660993. The next prime is 67661021. The reversal of 67661008 is 80016676.

It can be written as a sum of positive squares in only one way, i.e., 66716224 + 944784 = 8168^2 + 972^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2114391 + ... + 2114422.

Almost surely, 2^67661008 is an apocalyptic number.

It is an amenable number.

67661008 is a deficient number, since it is larger than the sum of its proper divisors (63432226).

67661008 is a wasteful number, since it uses less digits than its factorization.

67661008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4228821 (or 4228815 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 67661008 is about 8225.6311611937. The cubic root of 67661008 is about 407.4861209470.

The spelling of 67661008 in words is "sixty-seven million, six hundred sixty-one thousand, eight".