89000257 has 2 divisors, whose sum is σ = 89000258. Its totient is φ = 89000256.

The previous prime is 89000251. The next prime is 89000279. The reversal of 89000257 is 75200098.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 48944016 + 40056241 = 6996^2 + 6329^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-89000257 is a prime.

It is not a weakly prime, because it can be changed into another prime (89000251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44500128 + 44500129.

It is an arithmetic number, because the mean of its divisors is an integer number (44500129).

Almost surely, 2^89000257 is an apocalyptic number.

It is an amenable number.

89000257 is a deficient number, since it is larger than the sum of its proper divisors (1).

89000257 is an equidigital number, since it uses as much as digits as its factorization.

89000257 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5040, while the sum is 31.

The square root of 89000257 is about 9433.9947530195. The cubic root of 89000257 is about 446.4749393107.

The spelling of 89000257 in words is "eighty-nine million, two hundred fifty-seven", and thus it is an aban number.