68472171 has 12 divisors (see below), whose sum is σ = 99498672. Its totient is φ = 45373776.

The previous prime is 68472167. The next prime is 68472179. The reversal of 68472171 is 17127486.

It is not a de Polignac number, because 68472171 - 2² = 68472167 is a prime.

It is not an unprimeable number, because it can be changed into a prime (68472179) 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 in 11 ways as a sum of consecutive naturals, for example, 21276 + ... + 24281.

It is an arithmetic number, because the mean of its divisors is an integer number (8291556).

Almost surely, 2^68472171 is an apocalyptic number.

68472171 is a deficient number, since it is larger than the sum of its proper divisors (31026501).

68472171 is a wasteful number, since it uses less digits than its factorization.

68472171 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45730 (or 45727 counting only the distinct ones).

The product of its digits is 18816, while the sum is 36.

The square root of 68472171 is about 8274.7912964618. The cubic root of 68472171 is about 409.1080570455.

The spelling of 68472171 in words is "sixty-eight million, four hundred seventy-two thousand, one hundred seventy-one".