87336220 has 12 divisors (see below), whose sum is σ = 183406104. Its totient is φ = 34934480.

The previous prime is 87336149. The next prime is 87336229. The reversal of 87336220 is 2263378.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87336229) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2183386 + ... + 2183425.

It is an arithmetic number, because the mean of its divisors is an integer number (15283842).

Almost surely, 2^87336220 is an apocalyptic number.

It is an amenable number.

87336220 is an abundant number, since it is smaller than the sum of its proper divisors (96069884).

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

87336220 is a wasteful number, since it uses less digits than its factorization.

87336220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4366820 (or 4366818 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 31.

The square root of 87336220 is about 9345.3849572931. The cubic root of 87336220 is about 443.6748356457.

Adding to 87336220 its reverse (2263378), we get a palindrome (89599598).

The spelling of 87336220 in words is "eighty-seven million, three hundred thirty-six thousand, two hundred twenty".