67128948 has 18 divisors (see below), whose sum is σ = 169687154. Its totient is φ = 22376304.

The previous prime is 67128923. The next prime is 67128953. The reversal of 67128948 is 84982176.

It can be written as a sum of positive squares in only one way, i.e., 34433424 + 32695524 = 5868^2 + 5718^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 932311 + ... + 932382.

Almost surely, 2^67128948 is an apocalyptic number.

It is an amenable number.

67128948 is an abundant number, since it is smaller than the sum of its proper divisors (102558206).

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

67128948 is a wasteful number, since it uses less digits than its factorization.

67128948 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1864703 (or 1864698 counting only the distinct ones).

The product of its digits is 193536, while the sum is 45.

The square root of 67128948 is about 8193.2257383768. The cubic root of 67128948 is about 406.4152045095.

The spelling of 67128948 in words is "sixty-seven million, one hundred twenty-eight thousand, nine hundred forty-eight".