87132858 has 16 divisors (see below), whose sum is σ = 174730080. Its totient is φ = 28966896.

The previous prime is 87132853. The next prime is 87132923. The reversal of 87132858 is 85823178.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (87132853) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16885 + ... + 21432.

It is an arithmetic number, because the mean of its divisors is an integer number (10920630).

Almost surely, 2^87132858 is an apocalyptic number.

87132858 is an abundant number, since it is smaller than the sum of its proper divisors (87597222).

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

87132858 is a wasteful number, since it uses less digits than its factorization.

87132858 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38701.

The product of its digits is 107520, while the sum is 42.

The square root of 87132858 is about 9334.4982725372. The cubic root of 87132858 is about 443.3302030545.

It can be divided in two parts, 87132 and 858, that added together give a triangular number (87990 = T₄₁₉).

The spelling of 87132858 in words is "eighty-seven million, one hundred thirty-two thousand, eight hundred fifty-eight".