67970128 has 20 divisors (see below), whose sum is σ = 134905428. Its totient is φ = 33155840.

The previous prime is 67970051. The next prime is 67970137. The reversal of 67970128 is 82107976.

It can be written as a sum of positive squares in 2 ways, for example, as 5053504 + 62916624 = 2248^2 + 7932^2 .

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, 51151 + ... + 52462.

Almost surely, 2^67970128 is an apocalyptic number.

It is an amenable number.

67970128 is a deficient number, since it is larger than the sum of its proper divisors (66935300).

67970128 is a wasteful number, since it uses less digits than its factorization.

67970128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103662 (or 103656 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 40.

The square root of 67970128 is about 8244.3997962253. The cubic root of 67970128 is about 408.1057332018.

It can be divided in two parts, 679 and 70128, that added together give a palindrome (70807).

The spelling of 67970128 in words is "sixty-seven million, nine hundred seventy thousand, one hundred twenty-eight".