87314521 has 12 divisors (see below), whose sum is σ = 101802000. Its totient is φ = 74670120.

The previous prime is 87314503. The next prime is 87314527. The reversal of 87314521 is 12541378.

It is not a de Polignac number, because 87314521 - 2⁷ = 87314393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87314527) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22666 + ... + 26236.

It is an arithmetic number, because the mean of its divisors is an integer number (8483500).

Almost surely, 2^87314521 is an apocalyptic number.

It is an amenable number.

87314521 is a deficient number, since it is larger than the sum of its proper divisors (14487479).

87314521 is a wasteful number, since it uses less digits than its factorization.

87314521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4084 (or 4077 counting only the distinct ones).

The product of its digits is 6720, while the sum is 31.

The square root of 87314521 is about 9344.2239378131. The cubic root of 87314521 is about 443.6380883959.

Adding to 87314521 its reverse (12541378), we get a palindrome (99855899).

The spelling of 87314521 in words is "eighty-seven million, three hundred fourteen thousand, five hundred twenty-one".