89881827 has 12 divisors (see below), whose sum is σ = 139408776. Its totient is φ = 51360960.

The previous prime is 89881823. The next prime is 89881829. The reversal of 89881827 is 72818898.

It is a happy number.

It is not a de Polignac number, because 89881827 - 2² = 89881823 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 89881827.

It is not an unprimeable number, because it can be changed into a prime (89881823) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 305574 + ... + 305867.

It is an arithmetic number, because the mean of its divisors is an integer number (11617398).

Almost surely, 2^89881827 is an apocalyptic number.

89881827 is a deficient number, since it is larger than the sum of its proper divisors (49526949).

89881827 is a wasteful number, since it uses less digits than its factorization.

89881827 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 611458 (or 611451 counting only the distinct ones).

The product of its digits is 516096, while the sum is 51.

The square root of 89881827 is about 9480.6026707167. The cubic root of 89881827 is about 447.9442476193.

The spelling of 89881827 in words is "eighty-nine million, eight hundred eighty-one thousand, eight hundred twenty-seven".