89947853 has 2 divisors, whose sum is σ = 89947854. Its totient is φ = 89947852.

The previous prime is 89947849. The next prime is 89947859. The reversal of 89947853 is 35874998.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 69172489 + 20775364 = 8317^2 + 4558^2 .

It is a cyclic number.

It is not a de Polignac number, because 89947853 - 2² = 89947849 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 89947795 and 89947804.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (89947859) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44973926 + 44973927.

It is an arithmetic number, because the mean of its divisors is an integer number (44973927).

Almost surely, 2^89947853 is an apocalyptic number.

It is an amenable number.

89947853 is a deficient number, since it is larger than the sum of its proper divisors (1).

89947853 is an equidigital number, since it uses as much as digits as its factorization.

89947853 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2177280, while the sum is 53.

The square root of 89947853 is about 9484.0841940590. The cubic root of 89947853 is about 448.0539054104.

The spelling of 89947853 in words is "eighty-nine million, nine hundred forty-seven thousand, eight hundred fifty-three".