89021768 has 32 divisors (see below), whose sum is σ = 185535360. Its totient is φ = 39698880.

The previous prime is 89021749. The next prime is 89021771. The reversal of 89021768 is 86712098.

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

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, 4880 + ... + 14207.

It is an arithmetic number, because the mean of its divisors is an integer number (5797980).

Almost surely, 2^89021768 is an apocalyptic number.

89021768 is a gapful number since it is divisible by the number (88) formed by its first and last digit.

It is an amenable number.

89021768 is an abundant number, since it is smaller than the sum of its proper divisors (96513592).

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

89021768 is a wasteful number, since it uses less digits than its factorization.

89021768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19157 (or 19153 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 41.

The square root of 89021768 is about 9435.1347632135. The cubic root of 89021768 is about 446.5109068052.

The spelling of 89021768 in words is "eighty-nine million, twenty-one thousand, seven hundred sixty-eight".