67663228 has 12 divisors (see below), whose sum is σ = 118523440. Its totient is φ = 33799392.

The previous prime is 67663201. The next prime is 67663231. The reversal of 67663228 is 82236676.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

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, 2976 + ... + 12007.

Almost surely, 2^67663228 is an apocalyptic number.

It is an amenable number.

67663228 is a deficient number, since it is larger than the sum of its proper divisors (50860212).

67663228 is a wasteful number, since it uses less digits than its factorization.

67663228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16116 (or 16114 counting only the distinct ones).

The product of its digits is 145152, while the sum is 40.

The square root of 67663228 is about 8225.7661041389. The cubic root of 67663228 is about 407.4905775231.

The spelling of 67663228 in words is "sixty-seven million, six hundred sixty-three thousand, two hundred twenty-eight".