87071224 has 32 divisors (see below), whose sum is σ = 177786000. Its totient is φ = 39820032.

The previous prime is 87071221. The next prime is 87071227. The reversal of 87071224 is 42217078.

It is an interprime number because it is at equal distance from previous prime (87071221) and next prime (87071227).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87071221) 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 7 ways as a sum of consecutive naturals, for example, 5469 + ... + 14284.

Almost surely, 2^87071224 is an apocalyptic number.

It is an amenable number.

87071224 is an abundant number, since it is smaller than the sum of its proper divisors (90714776).

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

87071224 is a wasteful number, since it uses less digits than its factorization.

87071224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19807 (or 19803 counting only the distinct ones).

The product of its (nonzero) digits is 6272, while the sum is 31.

The square root of 87071224 is about 9331.1962791488. The cubic root of 87071224 is about 443.2256475533.

The spelling of 87071224 in words is "eighty-seven million, seventy-one thousand, two hundred twenty-four".