68657528 has 8 divisors (see below), whose sum is σ = 128732880. Its totient is φ = 34328760.

The previous prime is 68657527. The next prime is 68657531. The reversal of 68657528 is 82575686.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68657527) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4291088 + ... + 4291103.

It is an arithmetic number, because the mean of its divisors is an integer number (16091610).

Almost surely, 2^68657528 is an apocalyptic number.

It is an amenable number.

68657528 is a deficient number, since it is larger than the sum of its proper divisors (60075352).

68657528 is a wasteful number, since it uses less digits than its factorization.

68657528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8582197 (or 8582193 counting only the distinct ones).

The product of its digits is 806400, while the sum is 47.

The square root of 68657528 is about 8285.9838281281. The cubic root of 68657528 is about 409.4768819166.

The spelling of 68657528 in words is "sixty-eight million, six hundred fifty-seven thousand, five hundred twenty-eight".