89479121 has 2 divisors, whose sum is σ = 89479122. Its totient is φ = 89479120.

The previous prime is 89479079. The next prime is 89479153. The reversal of 89479121 is 12197498.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 89094721 + 384400 = 9439^2 + 620^2 .

It is a cyclic number.

It is not a de Polignac number, because 89479121 - 2¹⁰ = 89478097 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (89479171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44739560 + 44739561.

It is an arithmetic number, because the mean of its divisors is an integer number (44739561).

Almost surely, 2^89479121 is an apocalyptic number.

It is an amenable number.

89479121 is a deficient number, since it is larger than the sum of its proper divisors (1).

89479121 is an equidigital number, since it uses as much as digits as its factorization.

89479121 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 36288, while the sum is 41.

The square root of 89479121 is about 9459.3404104092. The cubic root of 89479121 is about 447.2742571046.

The spelling of 89479121 in words is "eighty-nine million, four hundred seventy-nine thousand, one hundred twenty-one".