87218846 has 16 divisors (see below), whose sum is σ = 153700848. Its totient is φ = 36595200.

The previous prime is 87218839. The next prime is 87218869. The reversal of 87218846 is 64881278.

It is a junction number, because it is equal to n+sod(n) for n = 87218797 and 87218806.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 152195 + ... + 152766.

It is an arithmetic number, because the mean of its divisors is an integer number (9606303).

Almost surely, 2^87218846 is an apocalyptic number.

87218846 is a deficient number, since it is larger than the sum of its proper divisors (66482002).

87218846 is a wasteful number, since it uses less digits than its factorization.

87218846 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 304987.

The product of its digits is 172032, while the sum is 44.

The square root of 87218846 is about 9339.1030618577. The cubic root of 87218846 is about 443.4759901708.

The spelling of 87218846 in words is "eighty-seven million, two hundred eighteen thousand, eight hundred forty-six".