67720116 has 24 divisors (see below), whose sum is σ = 160373920. Its totient is φ = 22236192.

The previous prime is 67720087. The next prime is 67720127. The reversal of 67720116 is 61102776.

It is a happy number.

It is a super-2 number, since 2×67720116² = 9172028222106912, which contains 22 as substring.

It is a congruent number.

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, 41311 + ... + 42918.

Almost surely, 2^67720116 is an apocalyptic number.

It is an amenable number.

67720116 is an abundant number, since it is smaller than the sum of its proper divisors (92653804).

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

67720116 is a wasteful number, since it uses less digits than its factorization.

67720116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84303 (or 84301 counting only the distinct ones).

The product of its (nonzero) digits is 3528, while the sum is 30.

The square root of 67720116 is about 8229.2232926322. The cubic root of 67720116 is about 407.6047450511.

The spelling of 67720116 in words is "sixty-seven million, seven hundred twenty thousand, one hundred sixteen".