67005996 has 12 divisors (see below), whose sum is σ = 156347352. Its totient is φ = 22335328.

The previous prime is 67005977. The next prime is 67006003. The reversal of 67005996 is 69950076.

It is a tau number, because it is divible by the number of its divisors (12).

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2791905 + ... + 2791928.

It is an arithmetic number, because the mean of its divisors is an integer number (13028946).

Almost surely, 2^67005996 is an apocalyptic number.

It is an amenable number.

67005996 is an abundant number, since it is smaller than the sum of its proper divisors (89341356).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

67005996 is a wasteful number, since it uses less digits than its factorization.

67005996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5583840 (or 5583838 counting only the distinct ones).

The product of its (nonzero) digits is 102060, while the sum is 42.

The square root of 67005996 is about 8185.7190276725. The cubic root of 67005996 is about 406.1669256247.

The spelling of 67005996 in words is "sixty-seven million, five thousand, nine hundred ninety-six".