89866457 has 2 divisors, whose sum is σ = 89866458. Its totient is φ = 89866456.

The previous prime is 89866433. The next prime is 89866487. The reversal of 89866457 is 75466898.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 75151561 + 14714896 = 8669^2 + 3836^2 .

It is a cyclic number.

It is not a de Polignac number, because 89866457 - 2⁸ = 89866201 is a prime.

It is a Chen prime.

It is a plaindrome in base 11.

It is a junction number, because it is equal to n+sod(n) for n = 89866399 and 89866408.

It is not a weakly prime, because it can be changed into another prime (89866417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44933228 + 44933229.

It is an arithmetic number, because the mean of its divisors is an integer number (44933229).

Almost surely, 2^89866457 is an apocalyptic number.

It is an amenable number.

89866457 is a deficient number, since it is larger than the sum of its proper divisors (1).

89866457 is an equidigital number, since it uses as much as digits as its factorization.

89866457 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2903040, while the sum is 53.

The square root of 89866457 is about 9479.7920335839. The cubic root of 89866457 is about 447.9187129968.

The spelling of 89866457 in words is "eighty-nine million, eight hundred sixty-six thousand, four hundred fifty-seven".