67946428 has 24 divisors (see below), whose sum is σ = 129964464. Its totient is φ = 30825600.

The previous prime is 67946423. The next prime is 67946447. The reversal of 67946428 is 82464976.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67946423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28648 + ... + 30928.

It is an arithmetic number, because the mean of its divisors is an integer number (5415186).

Almost surely, 2^67946428 is an apocalyptic number.

It is an amenable number.

67946428 is a deficient number, since it is larger than the sum of its proper divisors (62018036).

67946428 is a wasteful number, since it uses less digits than its factorization.

67946428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2973 (or 2971 counting only the distinct ones).

The product of its digits is 580608, while the sum is 46.

The square root of 67946428 is about 8242.9623315893. The cubic root of 67946428 is about 408.0582945669.

The spelling of 67946428 in words is "sixty-seven million, nine hundred forty-six thousand, four hundred twenty-eight".