87583081 has 4 divisors (see below), whose sum is σ = 89067600. Its totient is φ = 86098564.

The previous prime is 87583073. The next prime is 87583117. The reversal of 87583081 is 18038578.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 87583081 - 2³ = 87583073 is a prime.

It is a super-2 number, since 2×87583081² = 15341592154905122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87583051) 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 3 ways as a sum of consecutive naturals, for example, 742171 + ... + 742288.

It is an arithmetic number, because the mean of its divisors is an integer number (22266900).

Almost surely, 2^87583081 is an apocalyptic number.

It is an amenable number.

87583081 is a deficient number, since it is larger than the sum of its proper divisors (1484519).

87583081 is a wasteful number, since it uses less digits than its factorization.

87583081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1484518.

The product of its (nonzero) digits is 53760, while the sum is 40.

The square root of 87583081 is about 9358.5832795354. The cubic root of 87583081 is about 444.0924668088.

The spelling of 87583081 in words is "eighty-seven million, five hundred eighty-three thousand, eighty-one".