67782229 has 2 divisors, whose sum is σ = 67782230. Its totient is φ = 67782228.

The previous prime is 67782227. The next prime is 67782269. The reversal of 67782229 is 92228776.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 58110129 + 9672100 = 7623^2 + 3110^2 .

It is a cyclic number.

It is not a de Polignac number, because 67782229 - 2¹ = 67782227 is a prime.

Together with 67782227, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (67782227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33891114 + 33891115.

It is an arithmetic number, because the mean of its divisors is an integer number (33891115).

Almost surely, 2^67782229 is an apocalyptic number.

It is an amenable number.

67782229 is a deficient number, since it is larger than the sum of its proper divisors (1).

67782229 is an equidigital number, since it uses as much as digits as its factorization.

67782229 is an evil number, because the sum of its binary digits is even.

The product of its digits is 169344, while the sum is 43.

The square root of 67782229 is about 8232.9963561270. The cubic root of 67782229 is about 407.7293255476.

The spelling of 67782229 in words is "sixty-seven million, seven hundred eighty-two thousand, two hundred twenty-nine".