67688132 has 12 divisors (see below), whose sum is σ = 118540800. Its totient is φ = 33819336.

The previous prime is 67688129. The next prime is 67688143. The reversal of 67688132 is 23188676.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 67688132.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 869 + ... + 11667.

It is an arithmetic number, because the mean of its divisors is an integer number (9878400).

Almost surely, 2^67688132 is an apocalyptic number.

It is an amenable number.

67688132 is a deficient number, since it is larger than the sum of its proper divisors (50852668).

67688132 is a wasteful number, since it uses less digits than its factorization.

67688132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12370 (or 12368 counting only the distinct ones).

The product of its digits is 96768, while the sum is 41.

The square root of 67688132 is about 8227.2797448488. The cubic root of 67688132 is about 407.5405647952.

The spelling of 67688132 in words is "sixty-seven million, six hundred eighty-eight thousand, one hundred thirty-two".