87611412 has 72 divisors (see below), whose sum is σ = 244290144. Its totient is φ = 24349248.

The previous prime is 87611399. The next prime is 87611441. The reversal of 87611412 is 21411678.

It is a self number, because there is not a number n which added to its sum of digits gives 87611412.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19743 + ... + 23769.

Almost surely, 2^87611412 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 87611412, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (122145072).

87611412 is an abundant number, since it is smaller than the sum of its proper divisors (156678732).

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

87611412 is a wasteful number, since it uses less digits than its factorization.

87611412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4085 (or 4076 counting only the distinct ones).

The product of its digits is 2688, while the sum is 30.

The square root of 87611412 is about 9360.0967943713. The cubic root of 87611412 is about 444.1403460231.

The spelling of 87611412 in words is "eighty-seven million, six hundred eleven thousand, four hundred twelve".