89821069 has 16 divisors (see below), whose sum is σ = 99066240. Its totient is φ = 80930880.

The previous prime is 89821063. The next prime is 89821073. The reversal of 89821069 is 96012898.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 89821069 - 2⁹ = 89820557 is a prime.

It is a super-2 number, since 2×89821069² = 16135648872605522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89821063) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 138504 + ... + 139150.

It is an arithmetic number, because the mean of its divisors is an integer number (6191640).

Almost surely, 2^89821069 is an apocalyptic number.

It is an amenable number.

89821069 is a deficient number, since it is larger than the sum of its proper divisors (9245171).

89821069 is a wasteful number, since it uses less digits than its factorization.

89821069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 900.

The product of its (nonzero) digits is 62208, while the sum is 43.

The square root of 89821069 is about 9477.3977968639. The cubic root of 89821069 is about 447.8432916111.

The spelling of 89821069 in words is "eighty-nine million, eight hundred twenty-one thousand, sixty-nine".