89684440 has 16 divisors (see below), whose sum is σ = 201790080. Its totient is φ = 35873760.

The previous prime is 89684417. The next prime is 89684453. The reversal of 89684440 is 4448698.

It is a happy number.

It is a super-2 number, since 2×89684440² = 16086597556227200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1121016 + ... + 1121095.

It is an arithmetic number, because the mean of its divisors is an integer number (12611880).

Almost surely, 2^89684440 is an apocalyptic number.

It is an amenable number.

89684440 is an abundant number, since it is smaller than the sum of its proper divisors (112105640).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

89684440 is a wasteful number, since it uses less digits than its factorization.

89684440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2242122 (or 2242118 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 43.

The square root of 89684440 is about 9470.1869041746. The cubic root of 89684440 is about 447.6161012905.

The spelling of 89684440 in words is "eighty-nine million, six hundred eighty-four thousand, four hundred forty".