68919328 has 12 divisors (see below), whose sum is σ = 135684990. Its totient is φ = 34459648.

The previous prime is 68919317. The next prime is 68919353. The reversal of 68919328 is 82391986.

It can be written as a sum of positive squares in only one way, i.e., 68359824 + 559504 = 8268^2 + 748^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1076833 + ... + 1076896.

Almost surely, 2^68919328 is an apocalyptic number.

It is an amenable number.

68919328 is a deficient number, since it is larger than the sum of its proper divisors (66765662).

68919328 is a wasteful number, since it uses less digits than its factorization.

68919328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2153739 (or 2153731 counting only the distinct ones).

The product of its digits is 186624, while the sum is 46.

The square root of 68919328 is about 8301.7665589921. The cubic root of 68919328 is about 409.9966844864.

The spelling of 68919328 in words is "sixty-eight million, nine hundred nineteen thousand, three hundred twenty-eight".