89182481 has 2 divisors, whose sum is σ = 89182482. Its totient is φ = 89182480.

The previous prime is 89182463. The next prime is 89182487. The reversal of 89182481 is 18428198.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 67092481 + 22090000 = 8191^2 + 4700^2 .

It is a cyclic number.

It is not a de Polignac number, because 89182481 - 2²² = 84988177 is a prime.

It is a super-2 number, since 2×89182481² = 15907029834630722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (89182487) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44591240 + 44591241.

It is an arithmetic number, because the mean of its divisors is an integer number (44591241).

Almost surely, 2^89182481 is an apocalyptic number.

It is an amenable number.

89182481 is a deficient number, since it is larger than the sum of its proper divisors (1).

89182481 is an equidigital number, since it uses as much as digits as its factorization.

89182481 is an evil number, because the sum of its binary digits is even.

The product of its digits is 36864, while the sum is 41.

The square root of 89182481 is about 9443.6476533170. The cubic root of 89182481 is about 446.7794439988.

The spelling of 89182481 in words is "eighty-nine million, one hundred eighty-two thousand, four hundred eighty-one".