68657012 has 12 divisors (see below), whose sum is σ = 120207780. Its totient is φ = 34311936.

The previous prime is 68657009. The next prime is 68657023. The reversal of 68657012 is 21075686.

It can be written as a sum of positive squares in 2 ways, for example, as 34621456 + 34035556 = 5884^2 + 5834^2 .

It is a hoax number, since the sum of its digits (35) coincides with the sum of the digits of its distinct prime factors.

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, 14438 + ... + 18594.

It is an arithmetic number, because the mean of its divisors is an integer number (10017315).

Almost surely, 2^68657012 is an apocalyptic number.

It is an amenable number.

68657012 is a deficient number, since it is larger than the sum of its proper divisors (51550768).

68657012 is a wasteful number, since it uses less digits than its factorization.

68657012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8290 (or 8288 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 35.

The square root of 68657012 is about 8285.9526911515. The cubic root of 68657012 is about 409.4758560976.

The spelling of 68657012 in words is "sixty-eight million, six hundred fifty-seven thousand, twelve".