80584789 has 2 divisors, whose sum is σ = 80584790. Its totient is φ = 80584788.

The previous prime is 80584753. The next prime is 80584793. The reversal of 80584789 is 98748508.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 73667889 + 6916900 = 8583^2 + 2630^2 .

It is a cyclic number.

It is not a de Polignac number, because 80584789 - 2¹⁹ = 80060501 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80584739) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40292394 + 40292395.

It is an arithmetic number, because the mean of its divisors is an integer number (40292395).

Almost surely, 2^80584789 is an apocalyptic number.

It is an amenable number.

80584789 is a deficient number, since it is larger than the sum of its proper divisors (1).

80584789 is an equidigital number, since it uses as much as digits as its factorization.

80584789 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 645120, while the sum is 49.

The square root of 80584789 is about 8976.9030851402. The cubic root of 80584789 is about 431.9342982071.

The spelling of 80584789 in words is "eighty million, five hundred eighty-four thousand, seven hundred eighty-nine".