87023872 has 72 divisors (see below), whose sum is σ = 190010240. Its totient is φ = 39536640.

The previous prime is 87023863. The next prime is 87023887. The reversal of 87023872 is 27832078.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 262747 + ... + 263077.

Almost surely, 2^87023872 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 87023872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (95005120).

87023872 is an abundant number, since it is smaller than the sum of its proper divisors (102986368).

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

87023872 is a wasteful number, since it uses less digits than its factorization.

87023872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 439 (or 425 counting only the distinct ones).

The product of its (nonzero) digits is 37632, while the sum is 37.

The square root of 87023872 is about 9328.6586388398. The cubic root of 87023872 is about 443.1452864205.

It can be divided in two parts, 870 and 23872, that added together give a palindrome (24742).

The spelling of 87023872 in words is "eighty-seven million, twenty-three thousand, eight hundred seventy-two".