87285501 has 12 divisors (see below), whose sum is σ = 126584640. Its totient is φ = 57957000.

The previous prime is 87285493. The next prime is 87285557. The reversal of 87285501 is 10558278.

87285501 is a `hidden beast` number, since 8 + 72 + 85 + 501 = 666.

It is not a de Polignac number, because 87285501 - 2³ = 87285493 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87285581) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17061 + ... + 21578.

It is an arithmetic number, because the mean of its divisors is an integer number (10548720).

Almost surely, 2^87285501 is an apocalyptic number.

It is an amenable number.

87285501 is a deficient number, since it is larger than the sum of its proper divisors (39299139).

87285501 is a wasteful number, since it uses less digits than its factorization.

87285501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38896 (or 38893 counting only the distinct ones).

The product of its (nonzero) digits is 22400, while the sum is 36.

The square root of 87285501 is about 9342.6709778307. The cubic root of 87285501 is about 443.5889335178.

The spelling of 87285501 in words is "eighty-seven million, two hundred eighty-five thousand, five hundred one".