86872044 has 96 divisors (see below), whose sum is σ = 242937856. Its totient is φ = 23639040.

The previous prime is 86872021. The next prime is 86872063. The reversal of 86872044 is 44027868.

It is a junction number, because it is equal to n+sod(n) for n = 86871993 and 86872011.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 189864 + ... + 190320.

Almost surely, 2^86872044 is an apocalyptic number.

86872044 is a gapful number since it is divisible by the number (84) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 86872044, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (121468928).

86872044 is an abundant number, since it is smaller than the sum of its proper divisors (156065812).

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

86872044 is a wasteful number, since it uses less digits than its factorization.

86872044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 575 (or 573 counting only the distinct ones).

The product of its (nonzero) digits is 86016, while the sum is 39.

The square root of 86872044 is about 9320.5173676143. The cubic root of 86872044 is about 442.8874222000.

It can be divided in two parts, 8687 and 2044, that added together give a triangular number (10731 = T₁₄₆).

The spelling of 86872044 in words is "eighty-six million, eight hundred seventy-two thousand, forty-four".