67971612 has 12 divisors (see below), whose sum is σ = 158600456. Its totient is φ = 22657200.

The previous prime is 67971611. The next prime is 67971613. The reversal of 67971612 is 21617976.

It is an interprime number because it is at equal distance from previous prime (67971611) and next prime (67971613).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67971611) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2832139 + ... + 2832162.

Almost surely, 2^67971612 is an apocalyptic number.

It is an amenable number.

67971612 is an abundant number, since it is smaller than the sum of its proper divisors (90628844).

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

67971612 is a wasteful number, since it uses less digits than its factorization.

67971612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5664308 (or 5664306 counting only the distinct ones).

The product of its digits is 31752, while the sum is 39.

The square root of 67971612 is about 8244.4897962215. The cubic root of 67971612 is about 408.1087032540.

The spelling of 67971612 in words is "sixty-seven million, nine hundred seventy-one thousand, six hundred twelve".