67772723 has 2 divisors, whose sum is σ = 67772724. Its totient is φ = 67772722.

The previous prime is 67772707. The next prime is 67772813. The reversal of 67772723 is 32727776.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 67772723 - 2⁴ = 67772707 is a prime.

It is not a weakly prime, because it can be changed into another prime (67772323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33886361 + 33886362.

It is an arithmetic number, because the mean of its divisors is an integer number (33886362).

Almost surely, 2^67772723 is an apocalyptic number.

67772723 is a deficient number, since it is larger than the sum of its proper divisors (1).

67772723 is an equidigital number, since it uses as much as digits as its factorization.

67772723 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 172872, while the sum is 41.

The square root of 67772723 is about 8232.4190248067. The cubic root of 67772723 is about 407.7102642281.

The spelling of 67772723 in words is "sixty-seven million, seven hundred seventy-two thousand, seven hundred twenty-three".