89806851 has 24 divisors (see below), whose sum is σ = 133542864. Its totient is φ = 58122240.

The previous prime is 89806841. The next prime is 89806859. The reversal of 89806851 is 15860898.

It is not a de Polignac number, because 89806851 - 2¹³ = 89798659 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 89806797 and 89806806.

It is not an unprimeable number, because it can be changed into a prime (89806859) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 94360 + ... + 95306.

It is an arithmetic number, because the mean of its divisors is an integer number (5564286).

Almost surely, 2^89806851 is an apocalyptic number.

89806851 is a deficient number, since it is larger than the sum of its proper divisors (43736013).

89806851 is a wasteful number, since it uses less digits than its factorization.

89806851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1251 (or 1248 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 45.

The square root of 89806851 is about 9476.6476667649. The cubic root of 89806851 is about 447.8196602887.

The spelling of 89806851 in words is "eighty-nine million, eight hundred six thousand, eight hundred fifty-one".