80767669 has 2 divisors, whose sum is σ = 80767670. Its totient is φ = 80767668.

The previous prime is 80767649. The next prime is 80767691. The reversal of 80767669 is 96676708.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 53831569 + 26936100 = 7337^2 + 5190^2 .

It is a cyclic number.

It is not a de Polignac number, because 80767669 - 2¹³ = 80759477 is a prime.

It is a super-2 number, since 2×80767669² = 13046832711387122, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80767649) 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 as a sum of consecutive naturals, namely, 40383834 + 40383835.

It is an arithmetic number, because the mean of its divisors is an integer number (40383835).

Almost surely, 2^80767669 is an apocalyptic number.

It is an amenable number.

80767669 is a deficient number, since it is larger than the sum of its proper divisors (1).

80767669 is an equidigital number, since it uses as much as digits as its factorization.

80767669 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 762048, while the sum is 49.

The square root of 80767669 is about 8987.0834534903. The cubic root of 80767669 is about 432.2607968158.

The spelling of 80767669 in words is "eighty million, seven hundred sixty-seven thousand, six hundred sixty-nine".