67673906 has 16 divisors (see below), whose sum is σ = 108049464. Its totient is φ = 31678464.

The previous prime is 67673891. The next prime is 67673927. The reversal of 67673906 is 60937676.

It can be written as a sum of positive squares in 4 ways, for example, as 56175025 + 11498881 = 7495^2 + 3391^2 .

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 1406 + ... + 11718.

Almost surely, 2^67673906 is an apocalyptic number.

67673906 is a deficient number, since it is larger than the sum of its proper divisors (40375558).

67673906 is a wasteful number, since it uses less digits than its factorization.

67673906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10525.

The product of its (nonzero) digits is 285768, while the sum is 44.

The square root of 67673906 is about 8226.4151366194. The cubic root of 67673906 is about 407.5120118908.

The spelling of 67673906 in words is "sixty-seven million, six hundred seventy-three thousand, nine hundred six".