87611922 has 48 divisors (see below), whose sum is σ = 203592480. Its totient is φ = 27925128.

The previous prime is 87611917. The next prime is 87611933. The reversal of 87611922 is 22911678.

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, 27033 + ... + 30099.

It is an arithmetic number, because the mean of its divisors is an integer number (4241510).

Almost surely, 2^87611922 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 87611922, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (101796240).

87611922 is an abundant number, since it is smaller than the sum of its proper divisors (115980558).

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

87611922 is a wasteful number, since it uses less digits than its factorization.

87611922 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3124 (or 3095 counting only the distinct ones).

The product of its digits is 12096, while the sum is 36.

The square root of 87611922 is about 9360.1240376397. The cubic root of 87611922 is about 444.1412078253.

The spelling of 87611922 in words is "eighty-seven million, six hundred eleven thousand, nine hundred twenty-two".