87123486 has 8 divisors (see below), whose sum is σ = 174246984. Its totient is φ = 29041160.

The previous prime is 87123479. The next prime is 87123499. The reversal of 87123486 is 68432178.

It is a sphenic number, since it is the product of 3 distinct primes.

87123486 is an admirable number.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 7260285 + ... + 7260296.

It is an arithmetic number, because the mean of its divisors is an integer number (21780873).

Almost surely, 2^87123486 is an apocalyptic number.

87123486 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

87123486 is a wasteful number, since it uses less digits than its factorization.

87123486 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14520586.

The product of its digits is 64512, while the sum is 39.

The square root of 87123486 is about 9333.9962502671. The cubic root of 87123486 is about 443.3143076364.

The spelling of 87123486 in words is "eighty-seven million, one hundred twenty-three thousand, four hundred eighty-six".