80452769 has 2 divisors, whose sum is σ = 80452770. Its totient is φ = 80452768.

The previous prime is 80452759. The next prime is 80452777. The reversal of 80452769 is 96725408.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 56325025 + 24127744 = 7505^2 + 4912^2 .

It is a cyclic number.

It is not a de Polignac number, because 80452769 - 2⁴ = 80452753 is a prime.

It is a super-2 number, since 2×80452769² = 12945296079534722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (80452739) 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, 40226384 + 40226385.

It is an arithmetic number, because the mean of its divisors is an integer number (40226385).

Almost surely, 2^80452769 is an apocalyptic number.

It is an amenable number.

80452769 is a deficient number, since it is larger than the sum of its proper divisors (1).

80452769 is an equidigital number, since it uses as much as digits as its factorization.

80452769 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 120960, while the sum is 41.

The square root of 80452769 is about 8969.5467555501. The cubic root of 80452769 is about 431.6982936400.

The spelling of 80452769 in words is "eighty million, four hundred fifty-two thousand, seven hundred sixty-nine".