68272665 has 16 divisors (see below), whose sum is σ = 110868288. Its totient is φ = 35868096.

The previous prime is 68272661. The next prime is 68272703. The reversal of 68272665 is 56627286.

It is not a de Polignac number, because 68272665 - 2² = 68272661 is a prime.

It is a super-2 number, since 2×68272665² = 9322313572404450, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (68272661) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32962 + ... + 34971.

It is an arithmetic number, because the mean of its divisors is an integer number (6929268).

Almost surely, 2^68272665 is an apocalyptic number.

It is an amenable number.

68272665 is a deficient number, since it is larger than the sum of its proper divisors (42595623).

68272665 is a wasteful number, since it uses less digits than its factorization.

68272665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68008.

The product of its digits is 241920, while the sum is 42.

The square root of 68272665 is about 8262.7274552656. The cubic root of 68272665 is about 408.7103338515.

The spelling of 68272665 in words is "sixty-eight million, two hundred seventy-two thousand, six hundred sixty-five".