67028988 has 24 divisors (see below), whose sum is σ = 168432208. Its totient is φ = 20624256.

The previous prime is 67028981. The next prime is 67028989. The reversal of 67028988 is 88982076.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67028981) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 214681 + ... + 214992.

Almost surely, 2^67028988 is an apocalyptic number.

It is an amenable number.

67028988 is an abundant number, since it is smaller than the sum of its proper divisors (101403220).

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

67028988 is a wasteful number, since it uses less digits than its factorization.

67028988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 429693 (or 429691 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 48.

The square root of 67028988 is about 8187.1233043115. The cubic root of 67028988 is about 406.2133768011.

The spelling of 67028988 in words is "sixty-seven million, twenty-eight thousand, nine hundred eighty-eight".