89332821 has 8 divisors (see below), whose sum is σ = 132344960. Its totient is φ = 59555196.

The previous prime is 89332811. The next prime is 89332849. The reversal of 89332821 is 12823398.

It is a happy number.

It is not a de Polignac number, because 89332821 - 2⁶ = 89332757 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89332811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1654285 + ... + 1654338.

It is an arithmetic number, because the mean of its divisors is an integer number (16543120).

Almost surely, 2^89332821 is an apocalyptic number.

It is an amenable number.

89332821 is a deficient number, since it is larger than the sum of its proper divisors (43012139).

89332821 is a wasteful number, since it uses less digits than its factorization.

89332821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3308632 (or 3308626 counting only the distinct ones).

The product of its digits is 20736, while the sum is 36.

The square root of 89332821 is about 9451.6041495611. The cubic root of 89332821 is about 447.0303569312.

The spelling of 89332821 in words is "eighty-nine million, three hundred thirty-two thousand, eight hundred twenty-one".