87091060 has 96 divisors (see below), whose sum is σ = 227808000. Its totient is φ = 27288576.

The previous prime is 87091019. The next prime is 87091061. The reversal of 87091060 is 6019078.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87091061) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 76576 + ... + 77704.

It is an arithmetic number, because the mean of its divisors is an integer number (2373000).

Almost surely, 2^87091060 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 87091060, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (113904000).

87091060 is an abundant number, since it is smaller than the sum of its proper divisors (140716940).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

87091060 is a wasteful number, since it uses less digits than its factorization.

87091060 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1193 (or 1191 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 31.

The square root of 87091060 is about 9332.2591048470. The cubic root of 87091060 is about 443.2593025926.

The spelling of 87091060 in words is "eighty-seven million, ninety-one thousand, sixty".