89709851 has 16 divisors (see below), whose sum is σ = 113521920. Its totient is φ = 68856480.

The previous prime is 89709817. The next prime is 89709853. The reversal of 89709851 is 15890798.

It is a happy number.

It is not a de Polignac number, because 89709851 - 2⁶ = 89709787 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 89709796 and 89709805.

It is not an unprimeable number, because it can be changed into a prime (89709853) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3536 + ... + 13853.

It is an arithmetic number, because the mean of its divisors is an integer number (7095120).

Almost surely, 2^89709851 is an apocalyptic number.

89709851 is a deficient number, since it is larger than the sum of its proper divisors (23812069).

89709851 is a wasteful number, since it uses less digits than its factorization.

89709851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17474.

The product of its (nonzero) digits is 181440, while the sum is 47.

The square root of 89709851 is about 9471.5284405422. The cubic root of 89709851 is about 447.6583728323.

The spelling of 89709851 in words is "eighty-nine million, seven hundred nine thousand, eight hundred fifty-one".