87027220 has 48 divisors (see below), whose sum is σ = 219864960. Its totient is φ = 28266624.

The previous prime is 87027209. The next prime is 87027223. The reversal of 87027220 is 2272078.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87027223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13699 + ... + 19018.

It is an arithmetic number, because the mean of its divisors is an integer number (4580520).

Almost surely, 2^87027220 is an apocalyptic number.

It is an amenable number.

87027220 is an abundant number, since it is smaller than the sum of its proper divisors (132837740).

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

87027220 is a wasteful number, since it uses less digits than its factorization.

87027220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32752 (or 32750 counting only the distinct ones).

The product of its (nonzero) digits is 3136, while the sum is 28.

The square root of 87027220 is about 9328.8380841346. The cubic root of 87027220 is about 443.1509692726.

Adding to 87027220 its reverse (2272078), we get a palindrome (89299298).

The spelling of 87027220 in words is "eighty-seven million, twenty-seven thousand, two hundred twenty".