68872147 has 2 divisors, whose sum is σ = 68872148. Its totient is φ = 68872146.

The previous prime is 68872127. The next prime is 68872159. The reversal of 68872147 is 74127886.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 68872147 - 2⁷ = 68872019 is a prime.

It is not a weakly prime, because it can be changed into another prime (68872127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34436073 + 34436074.

It is an arithmetic number, because the mean of its divisors is an integer number (34436074).

Almost surely, 2^68872147 is an apocalyptic number.

68872147 is a deficient number, since it is larger than the sum of its proper divisors (1).

68872147 is an equidigital number, since it uses as much as digits as its factorization.

68872147 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 150528, while the sum is 43.

The square root of 68872147 is about 8298.9244483849. The cubic root of 68872147 is about 409.9031042092.

The spelling of 68872147 in words is "sixty-eight million, eight hundred seventy-two thousand, one hundred forty-seven".