68609272 has 8 divisors (see below), whose sum is σ = 128642400. Its totient is φ = 34304632.

The previous prime is 68609267. The next prime is 68609279. The reversal of 68609272 is 27290686.

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 (68609279) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4288072 + ... + 4288087.

It is an arithmetic number, because the mean of its divisors is an integer number (16080300).

Almost surely, 2^68609272 is an apocalyptic number.

It is an amenable number.

68609272 is a deficient number, since it is larger than the sum of its proper divisors (60033128).

68609272 is a wasteful number, since it uses less digits than its factorization.

68609272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8576165 (or 8576161 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 40.

The square root of 68609272 is about 8283.0714110166. The cubic root of 68609272 is about 409.3809257111.

The spelling of 68609272 in words is "sixty-eight million, six hundred nine thousand, two hundred seventy-two".