87525647 has 8 divisors (see below), whose sum is σ = 100508160. Its totient is φ = 75380760.

The previous prime is 87525643. The next prime is 87525677. The reversal of 87525647 is 74652578.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 87525647 - 2² = 87525643 is a prime.

It is a super-3 number, since 3×87525647³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 87525598 and 87525607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87525643) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 209183 + ... + 209600.

It is an arithmetic number, because the mean of its divisors is an integer number (12563520).

Almost surely, 2^87525647 is an apocalyptic number.

87525647 is a deficient number, since it is larger than the sum of its proper divisors (12982513).

87525647 is a wasteful number, since it uses less digits than its factorization.

87525647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 418813.

The product of its digits is 470400, while the sum is 44.

The square root of 87525647 is about 9355.5142563089. The cubic root of 87525647 is about 443.9953720130.

The spelling of 87525647 in words is "eighty-seven million, five hundred twenty-five thousand, six hundred forty-seven".