67000000 has 98 divisors (see below), whose sum is σ = 168669716. Its totient is φ = 26400000.

The previous prime is 66999997. The next prime is 67000019. The reversal of 67000000 is 76.

It is an unprimeable number.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 999967 + ... + 1000033.

Almost surely, 2^67000000 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 67000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (84334858).

67000000 is an abundant number, since it is smaller than the sum of its proper divisors (101669716).

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

67000000 is an frugal number, since it uses more digits than its factorization.

67000000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109 (or 74 counting only the distinct ones).

The product of its (nonzero) digits is 42, while the sum is 13.

The square root of 67000000 is about 8185.3527718724. The cubic root of 67000000 is about 406.1548100446.

Adding to 67000000 its reverse (76), we get a palindrome (67000076).

The spelling of 67000000 in words is "sixty-seven million", and thus it is an aban number and an uban number.