893450989 has 2 divisors, whose sum is σ = 893450990. Its totient is φ = 893450988.

The previous prime is 893450959. The next prime is 893450993. The reversal of 893450989 is 989054398.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 499746025 + 393704964 = 22355^2 + 19842^2 .

It is a cyclic number.

It is not a de Polignac number, because 893450989 - 2¹⁹ = 892926701 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (893450959) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 446725494 + 446725495.

It is an arithmetic number, because the mean of its divisors is an integer number (446725495).

Almost surely, 2^893450989 is an apocalyptic number.

It is an amenable number.

893450989 is a deficient number, since it is larger than the sum of its proper divisors (1).

893450989 is an equidigital number, since it uses as much as digits as its factorization.

893450989 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2799360, while the sum is 55.

The square root of 893450989 is about 29890.6505282170. The cubic root of 893450989 is about 963.1418291545.

The spelling of 893450989 in words is "eight hundred ninety-three million, four hundred fifty thousand, nine hundred eighty-nine".