87236562 has 128 divisors (see below), whose sum is σ = 225792000. Its totient is φ = 22353408.

The previous prime is 87236557. The next prime is 87236587. The reversal of 87236562 is 26563278.

It is a super-2 number, since 2×87236562² = 15220435499159688, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 87236562.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 899298 + ... + 899394.

It is an arithmetic number, because the mean of its divisors is an integer number (1764000).

Almost surely, 2^87236562 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 87236562, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (112896000).

87236562 is an abundant number, since it is smaller than the sum of its proper divisors (138555438).

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

87236562 is a wasteful number, since it uses less digits than its factorization.

87236562 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165 (or 151 counting only the distinct ones).

The product of its digits is 120960, while the sum is 39.

The square root of 87236562 is about 9340.0514987874. The cubic root of 87236562 is about 443.5060146021.

The spelling of 87236562 in words is "eighty-seven million, two hundred thirty-six thousand, five hundred sixty-two".