87030224 has 10 divisors (see below), whose sum is σ = 168621090. Its totient is φ = 43515104.

The previous prime is 87030221. The next prime is 87030283. The reversal of 87030224 is 42203078.

It can be written as a sum of positive squares in only one way, i.e., 79566400 + 7463824 = 8920^2 + 2732^2 .

It is a junction number, because it is equal to n+sod(n) for n = 87030193 and 87030202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87030221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2719679 + ... + 2719710.

It is an arithmetic number, because the mean of its divisors is an integer number (16862109).

Almost surely, 2^87030224 is an apocalyptic number.

It is an amenable number.

87030224 is a deficient number, since it is larger than the sum of its proper divisors (81590866).

87030224 is a wasteful number, since it uses less digits than its factorization.

87030224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5439397 (or 5439391 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 26.

The square root of 87030224 is about 9328.9990888626. Note that the first 3 decimals coincide. The cubic root of 87030224 is about 443.1560680996.

The spelling of 87030224 in words is "eighty-seven million, thirty thousand, two hundred twenty-four".