87806851 has 8 divisors (see below), whose sum is σ = 95914800. Its totient is φ = 79719840.

The previous prime is 87806843. The next prime is 87806861. The reversal of 87806851 is 15860878.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 87806851 - 2³ = 87806843 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 87806798 and 87806807.

It is not an unprimeable number, because it can be changed into a prime (87806821) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4305 + ... + 13933.

It is an arithmetic number, because the mean of its divisors is an integer number (11989350).

Almost surely, 2^87806851 is an apocalyptic number.

87806851 is a deficient number, since it is larger than the sum of its proper divisors (8107949).

87806851 is a wasteful number, since it uses less digits than its factorization.

87806851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10469.

The product of its (nonzero) digits is 107520, while the sum is 43.

The square root of 87806851 is about 9370.5309881564. The cubic root of 87806851 is about 444.4703558481.

The spelling of 87806851 in words is "eighty-seven million, eight hundred six thousand, eight hundred fifty-one".