87361020 has 72 divisors (see below), whose sum is σ = 266260176. Its totient is φ = 23185152.

The previous prime is 87360997. The next prime is 87361039. The reversal of 87361020 is 2016378.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 40899 + ... + 42981.

It is an arithmetic number, because the mean of its divisors is an integer number (3698058).

Almost surely, 2^87361020 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 87361020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (133130088).

87361020 is an abundant number, since it is smaller than the sum of its proper divisors (178899156).

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

87361020 is a wasteful number, since it uses less digits than its factorization.

87361020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2331 (or 2326 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 87361020 is about 9346.7117212419. The cubic root of 87361020 is about 443.7168269852.

Adding to 87361020 its reverse (2016378), we get a palindrome (89377398).

The spelling of 87361020 in words is "eighty-seven million, three hundred sixty-one thousand, twenty".