87008122 has 4 divisors (see below), whose sum is σ = 130512186. Its totient is φ = 43504060.

The previous prime is 87008093. The next prime is 87008123. The reversal of 87008122 is 22180078.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 22180078 = 2 ⋅11090039.

It can be written as a sum of positive squares in only one way, i.e., 66928761 + 20079361 = 8181^2 + 4481^2 .

It is not an unprimeable number, because it can be changed into a prime (87008123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21752029 + ... + 21752032.

Almost surely, 2^87008122 is an apocalyptic number.

87008122 is a deficient number, since it is larger than the sum of its proper divisors (43504064).

87008122 is a wasteful number, since it uses less digits than its factorization.

87008122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43504063.

The product of its (nonzero) digits is 1792, while the sum is 28.

The square root of 87008122 is about 9327.8144278282. The cubic root of 87008122 is about 443.1185506172.

The spelling of 87008122 in words is "eighty-seven million, eight thousand, one hundred twenty-two".