87045228 has 18 divisors (see below), whose sum is σ = 220031084. Its totient is φ = 29015064.

The previous prime is 87045227. The next prime is 87045229. The reversal of 87045228 is 82254078.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (87045227) and next prime (87045229).

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 2417923 = 87045228 / (8 + 7 + 0 + 4 + 5 + 2 + 2 + 8).

It is a junction number, because it is equal to n+sod(n) for n = 87045192 and 87045201.

It is not an unprimeable number, because it can be changed into a prime (87045221) 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 5 ways as a sum of consecutive naturals, for example, 1208926 + ... + 1208997.

Almost surely, 2^87045228 is an apocalyptic number.

It is an amenable number.

87045228 is an abundant number, since it is smaller than the sum of its proper divisors (132985856).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

87045228 is a wasteful number, since it uses less digits than its factorization.

87045228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2417933 (or 2417928 counting only the distinct ones).

The product of its (nonzero) digits is 35840, while the sum is 36.

The square root of 87045228 is about 9329.8032133588. The cubic root of 87045228 is about 443.1815333202.

The spelling of 87045228 in words is "eighty-seven million, forty-five thousand, two hundred twenty-eight".