89820788 has 12 divisors (see below), whose sum is σ = 159176640. Its totient is φ = 44341752.

The previous prime is 89820781. The next prime is 89820811. The reversal of 89820788 is 88702898.

It is a super-4 number, since 4×89820788⁴ (a number of 33 digits) contains 4444 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89820781) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 141806 + ... + 142437.

It is an arithmetic number, because the mean of its divisors is an integer number (13264720).

Almost surely, 2^89820788 is an apocalyptic number.

It is an amenable number.

89820788 is a deficient number, since it is larger than the sum of its proper divisors (69355852).

89820788 is a wasteful number, since it uses less digits than its factorization.

89820788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 284326 (or 284324 counting only the distinct ones).

The product of its (nonzero) digits is 516096, while the sum is 50.

The square root of 89820788 is about 9477.3829721079. The cubic root of 89820788 is about 447.8428245934.

The spelling of 89820788 in words is "eighty-nine million, eight hundred twenty thousand, seven hundred eighty-eight".