87418572 has 48 divisors (see below), whose sum is σ = 208196352. Its totient is φ = 28543680.

The previous prime is 87418547. The next prime is 87418603. The reversal of 87418572 is 27581478.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 131922 + ... + 132582.

It is an arithmetic number, because the mean of its divisors is an integer number (4337424).

Almost surely, 2^87418572 is an apocalyptic number.

It is an amenable number.

87418572 is an abundant number, since it is smaller than the sum of its proper divisors (120777780).

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

87418572 is a wasteful number, since it uses less digits than its factorization.

87418572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 878 (or 876 counting only the distinct ones).

The product of its digits is 125440, while the sum is 42.

The square root of 87418572 is about 9349.7899441645. The cubic root of 87418572 is about 443.8142433735.

It can be divided in two parts, 87418 and 572, that added together give a triangular number (87990 = T₄₁₉).

The spelling of 87418572 in words is "eighty-seven million, four hundred eighteen thousand, five hundred seventy-two".