87228847 has 4 divisors (see below), whose sum is σ = 87254536. Its totient is φ = 87203160.

The previous prime is 87228803. The next prime is 87228893. The reversal of 87228847 is 74882278.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 74882278 = 2 ⋅37441139.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-87228847 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 87228797 and 87228806.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87223847) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6804 + ... + 14857.

It is an arithmetic number, because the mean of its divisors is an integer number (21813634).

Almost surely, 2^87228847 is an apocalyptic number.

87228847 is a deficient number, since it is larger than the sum of its proper divisors (25689).

87228847 is a wasteful number, since it uses less digits than its factorization.

87228847 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25688.

The product of its digits is 401408, while the sum is 46.

The square root of 87228847 is about 9339.6384833675. The cubic root of 87228847 is about 443.4929400009.

The spelling of 87228847 in words is "eighty-seven million, two hundred twenty-eight thousand, eight hundred forty-seven".