89546819 has 2 divisors, whose sum is σ = 89546820. Its totient is φ = 89546818.

The previous prime is 89546813. The next prime is 89546893. The reversal of 89546819 is 91864598.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-89546819 is a prime.

It is a super-2 number, since 2×89546819² = 16037265586037522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (89546813) 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, 44773409 + 44773410.

It is an arithmetic number, because the mean of its divisors is an integer number (44773410).

Almost surely, 2^89546819 is an apocalyptic number.

89546819 is a deficient number, since it is larger than the sum of its proper divisors (1).

89546819 is an equidigital number, since it uses as much as digits as its factorization.

89546819 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 622080, while the sum is 50.

The square root of 89546819 is about 9462.9181017274. The cubic root of 89546819 is about 447.3870280662.

The spelling of 89546819 in words is "eighty-nine million, five hundred forty-six thousand, eight hundred nineteen".