67836321 has 12 divisors (see below), whose sum is σ = 111983872. Its totient is φ = 38763576.

The previous prime is 67836317. The next prime is 67836367. The reversal of 67836321 is 12363876.

It is a happy number.

It is not a de Polignac number, because 67836321 - 2² = 67836317 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is not an unprimeable number, because it can be changed into a prime (67836121) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 538321 + ... + 538446.

Almost surely, 2^67836321 is an apocalyptic number.

It is an amenable number.

67836321 is a deficient number, since it is larger than the sum of its proper divisors (44147551).

67836321 is a wasteful number, since it uses less digits than its factorization.

67836321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1076780 (or 1076777 counting only the distinct ones).

The product of its digits is 36288, while the sum is 36.

The square root of 67836321 is about 8236.2807747186. The cubic root of 67836321 is about 407.8377562814.

The spelling of 67836321 in words is "sixty-seven million, eight hundred thirty-six thousand, three hundred twenty-one".