87018192 has 80 divisors (see below), whose sum is σ = 251561280. Its totient is φ = 28798848.

The previous prime is 87018179. The next prime is 87018199. The reversal of 87018192 is 29181078.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87018199) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 67183 + ... + 68465.

It is an arithmetic number, because the mean of its divisors is an integer number (3144516).

Almost surely, 2^87018192 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 87018192, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (125780640).

87018192 is an abundant number, since it is smaller than the sum of its proper divisors (164543088).

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

87018192 is a wasteful number, since it uses less digits than its factorization.

87018192 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1457 (or 1445 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 36.

The square root of 87018192 is about 9328.3541956767. The cubic root of 87018192 is about 443.1356449281.

The spelling of 87018192 in words is "eighty-seven million, eighteen thousand, one hundred ninety-two".