89456513 has 2 divisors, whose sum is σ = 89456514. Its totient is φ = 89456512.

The previous prime is 89456509. The next prime is 89456531. The reversal of 89456513 is 31565498.

Together with next prime (89456531) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 69089344 + 20367169 = 8312^2 + 4513^2 .

It is a cyclic number.

It is not a de Polignac number, because 89456513 - 2² = 89456509 is a prime.

It is a super-3 number, since 3×89456513³ (a number of 25 digits) contains 333 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (89456573) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44728256 + 44728257.

It is an arithmetic number, because the mean of its divisors is an integer number (44728257).

Almost surely, 2^89456513 is an apocalyptic number.

It is an amenable number.

89456513 is a deficient number, since it is larger than the sum of its proper divisors (1).

89456513 is an equidigital number, since it uses as much as digits as its factorization.

89456513 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 129600, while the sum is 41.

The square root of 89456513 is about 9458.1453255911. The cubic root of 89456513 is about 447.2365841516.

The spelling of 89456513 in words is "eighty-nine million, four hundred fifty-six thousand, five hundred thirteen".