89654813 has 2 divisors, whose sum is σ = 89654814. Its totient is φ = 89654812.

The previous prime is 89654791. The next prime is 89654849. The reversal of 89654813 is 31845698.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 86620249 + 3034564 = 9307^2 + 1742^2 .

It is a cyclic number.

It is not a de Polignac number, because 89654813 - 2⁸ = 89654557 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (89653813) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44827406 + 44827407.

It is an arithmetic number, because the mean of its divisors is an integer number (44827407).

Almost surely, 2^89654813 is an apocalyptic number.

It is an amenable number.

89654813 is a deficient number, since it is larger than the sum of its proper divisors (1).

89654813 is an equidigital number, since it uses as much as digits as its factorization.

89654813 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 207360, while the sum is 44.

The square root of 89654813 is about 9468.6225502974. The cubic root of 89654813 is about 447.5668062928.

The spelling of 89654813 in words is "eighty-nine million, six hundred fifty-four thousand, eight hundred thirteen".