68182889 has 2 divisors, whose sum is σ = 68182890. Its totient is φ = 68182888.

The previous prime is 68182883. The next prime is 68182901. The reversal of 68182889 is 98828186.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 63043600 + 5139289 = 7940^2 + 2267^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-68182889 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (68182883) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34091444 + 34091445.

It is an arithmetic number, because the mean of its divisors is an integer number (34091445).

Almost surely, 2^68182889 is an apocalyptic number.

It is an amenable number.

68182889 is a deficient number, since it is larger than the sum of its proper divisors (1).

68182889 is an equidigital number, since it uses as much as digits as its factorization.

68182889 is an evil number, because the sum of its binary digits is even.

The product of its digits is 442368, while the sum is 50.

The square root of 68182889 is about 8257.2930794541. The cubic root of 68182889 is about 408.5311090050.

The spelling of 68182889 in words is "sixty-eight million, one hundred eighty-two thousand, eight hundred eighty-nine".