89189549 has 2 divisors, whose sum is σ = 89189550. Its totient is φ = 89189548.

The previous prime is 89189543. The next prime is 89189563. The reversal of 89189549 is 94598198.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 80820100 + 8369449 = 8990^2 + 2893^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-89189549 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 89189549.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (89189543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44594774 + 44594775.

It is an arithmetic number, because the mean of its divisors is an integer number (44594775).

Almost surely, 2^89189549 is an apocalyptic number.

It is an amenable number.

89189549 is a deficient number, since it is larger than the sum of its proper divisors (1).

89189549 is an equidigital number, since it uses as much as digits as its factorization.

89189549 is an evil number, because the sum of its binary digits is even.

The product of its digits is 933120, while the sum is 53.

The square root of 89189549 is about 9444.0218657095. The cubic root of 89189549 is about 446.7912465922.

The spelling of 89189549 in words is "eighty-nine million, one hundred eighty-nine thousand, five hundred forty-nine".