68689252 has 6 divisors (see below), whose sum is σ = 120206198. Its totient is φ = 34344624.

The previous prime is 68689241. The next prime is 68689253. The reversal of 68689252 is 25298686.

It can be written as a sum of positive squares in only one way, i.e., 55264356 + 13424896 = 7434^2 + 3664^2 .

It is not an unprimeable number, because it can be changed into a prime (68689253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8586153 + ... + 8586160.

Almost surely, 2^68689252 is an apocalyptic number.

It is an amenable number.

68689252 is a deficient number, since it is larger than the sum of its proper divisors (51516946).

68689252 is a wasteful number, since it uses less digits than its factorization.

68689252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17172317 (or 17172315 counting only the distinct ones).

The product of its digits is 414720, while the sum is 46.

The square root of 68689252 is about 8287.8979240818. The cubic root of 68689252 is about 409.5399400387.

The spelling of 68689252 in words is "sixty-eight million, six hundred eighty-nine thousand, two hundred fifty-two".