87445228 has 12 divisors (see below), whose sum is σ = 164800720. Its totient is φ = 40359312.

The previous prime is 87445223. The next prime is 87445243. The reversal of 87445228 is 82254478.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (87445223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 840768 + ... + 840871.

Almost surely, 2^87445228 is an apocalyptic number.

It is an amenable number.

87445228 is a deficient number, since it is larger than the sum of its proper divisors (77355492).

87445228 is a wasteful number, since it uses less digits than its factorization.

87445228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1681656 (or 1681654 counting only the distinct ones).

The product of its digits is 143360, while the sum is 40.

The square root of 87445228 is about 9351.2153220851. The cubic root of 87445228 is about 443.8593486258.

The spelling of 87445228 in words is "eighty-seven million, four hundred forty-five thousand, two hundred twenty-eight".