87527649 has 24 divisors (see below), whose sum is σ = 129578176. Its totient is φ = 52509600.

The previous prime is 87527639. The next prime is 87527683. The reversal of 87527649 is 94672578.

It is not a de Polignac number, because 87527649 - 2⁵ = 87527617 is a prime.

It is a super-2 number, since 2×87527649² = 15322178678934402, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 87527598 and 87527607.

It is not an unprimeable number, because it can be changed into a prime (87527639) 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 23 ways as a sum of consecutive naturals, for example, 36219 + ... + 38559.

Almost surely, 2^87527649 is an apocalyptic number.

It is an amenable number.

87527649 is a deficient number, since it is larger than the sum of its proper divisors (42050527).

87527649 is a wasteful number, since it uses less digits than its factorization.

87527649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2469 (or 2458 counting only the distinct ones).

The product of its digits is 846720, while the sum is 48.

The square root of 87527649 is about 9355.6212514188. The cubic root of 87527649 is about 443.9987571997.

Subtracting 87527649 from its reverse (94672578), we obtain a square (7144929 = 2673²).

The spelling of 87527649 in words is "eighty-seven million, five hundred twenty-seven thousand, six hundred forty-nine".