67243028 has 6 divisors (see below), whose sum is σ = 117675306. Its totient is φ = 33621512.

The previous prime is 67243027. The next prime is 67243039. The reversal of 67243028 is 82034276.

It can be written as a sum of positive squares in only one way, i.e., 63170704 + 4072324 = 7948^2 + 2018^2 .

It is a junction number, because it is equal to n+sod(n) for n = 67242985 and 67243003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67243021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8405375 + ... + 8405382.

It is an arithmetic number, because the mean of its divisors is an integer number (19612551).

Almost surely, 2^67243028 is an apocalyptic number.

It is an amenable number.

67243028 is a deficient number, since it is larger than the sum of its proper divisors (50432278).

67243028 is a wasteful number, since it uses less digits than its factorization.

67243028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16810761 (or 16810759 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 32.

The square root of 67243028 is about 8200.1846320677. The cubic root of 67243028 is about 406.6452970347.

The spelling of 67243028 in words is "sixty-seven million, two hundred forty-three thousand, twenty-eight".