89485789 has 2 divisors, whose sum is σ = 89485790. Its totient is φ = 89485788.

The previous prime is 89485777. The next prime is 89485811. The reversal of 89485789 is 98758498.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 77528025 + 11957764 = 8805^2 + 3458^2 .

It is a cyclic number.

It is not a de Polignac number, because 89485789 - 2¹⁹ = 88961501 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (89485729) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44742894 + 44742895.

It is an arithmetic number, because the mean of its divisors is an integer number (44742895).

Almost surely, 2^89485789 is an apocalyptic number.

It is an amenable number.

89485789 is a deficient number, since it is larger than the sum of its proper divisors (1).

89485789 is an equidigital number, since it uses as much as digits as its factorization.

89485789 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5806080, while the sum is 58.

The square root of 89485789 is about 9459.6928597074. The cubic root of 89485789 is about 447.2853671477.

The spelling of 89485789 in words is "eighty-nine million, four hundred eighty-five thousand, seven hundred eighty-nine".