87424256 has 18 divisors (see below), whose sum is σ = 174507522. Its totient is φ = 43712000.

The previous prime is 87424231. The next prime is 87424261. The reversal of 87424256 is 65242478.

It can be written as a sum of positive squares in only one way, i.e., 60217600 + 27206656 = 7760^2 + 5216^2 .

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 170495 + ... + 171006.

Almost surely, 2^87424256 is an apocalyptic number.

It is an amenable number.

87424256 is a deficient number, since it is larger than the sum of its proper divisors (87083266).

87424256 is an equidigital number, since it uses as much as digits as its factorization.

87424256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 341517 (or 341503 counting only the distinct ones).

The product of its digits is 107520, while the sum is 38.

The square root of 87424256 is about 9350.0939032718. The cubic root of 87424256 is about 443.8238621743.

The spelling of 87424256 in words is "eighty-seven million, four hundred twenty-four thousand, two hundred fifty-six".