87081109 has 8 divisors (see below), whose sum is σ = 88917120. Its totient is φ = 85257216.

The previous prime is 87081103. The next prime is 87081119. The reversal of 87081109 is 90118078.

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 87081109 - 2³ = 87081101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87081101) 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, 12292 + ... + 18034.

It is an arithmetic number, because the mean of its divisors is an integer number (11114640).

Almost surely, 2^87081109 is an apocalyptic number.

It is an amenable number.

87081109 is a deficient number, since it is larger than the sum of its proper divisors (1836011).

87081109 is a wasteful number, since it uses less digits than its factorization.

87081109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6059.

The product of its (nonzero) digits is 4032, while the sum is 34.

The square root of 87081109 is about 9331.7259389676. The cubic root of 87081109 is about 443.2424197219.

The spelling of 87081109 in words is "eighty-seven million, eighty-one thousand, one hundred nine".