89140568 has 32 divisors (see below), whose sum is σ = 183384000. Its totient is φ = 40284960.

The previous prime is 89140553. The next prime is 89140573. The reversal of 89140568 is 86504198.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12923 + ... + 18581.

It is an arithmetic number, because the mean of its divisors is an integer number (5730750).

Almost surely, 2^89140568 is an apocalyptic number.

89140568 is a gapful number since it is divisible by the number (88) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 89140568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (91692000).

89140568 is an abundant number, since it is smaller than the sum of its proper divisors (94243432).

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

89140568 is a wasteful number, since it uses less digits than its factorization.

89140568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5855 (or 5851 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 41.

The square root of 89140568 is about 9441.4282817803. The cubic root of 89140568 is about 446.7094422043.

The spelling of 89140568 in words is "eighty-nine million, one hundred forty thousand, five hundred sixty-eight".