89758561 has 2 divisors, whose sum is σ = 89758562. Its totient is φ = 89758560.

The previous prime is 89758549. The next prime is 89758573. The reversal of 89758561 is 16585798.

It is a balanced prime because it is at equal distance from previous prime (89758549) and next prime (89758573).

It can be written as a sum of positive squares in only one way, i.e., 65934400 + 23824161 = 8120^2 + 4881^2 .

It is a cyclic number.

It is not a de Polignac number, because 89758561 - 2¹³ = 89750369 is a prime.

It is a super-3 number, since 3×89758561³ (a number of 25 digits) contains 333 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (89758531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44879280 + 44879281.

It is an arithmetic number, because the mean of its divisors is an integer number (44879281).

Almost surely, 2^89758561 is an apocalyptic number.

It is an amenable number.

89758561 is a deficient number, since it is larger than the sum of its proper divisors (1).

89758561 is an equidigital number, since it uses as much as digits as its factorization.

89758561 is an evil number, because the sum of its binary digits is even.

The product of its digits is 604800, while the sum is 49.

The square root of 89758561 is about 9474.0994822727. The cubic root of 89758561 is about 447.7393802642.

The spelling of 89758561 in words is "eighty-nine million, seven hundred fifty-eight thousand, five hundred sixty-one".