87860256 has 192 divisors, whose sum is σ = 275788800. Its totient is φ = 24192000.

The previous prime is 87860239. The next prime is 87860257. The reversal of 87860256 is 65206878.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87860257) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 581781 + ... + 581931.

It is an arithmetic number, because the mean of its divisors is an integer number (1436400).

Almost surely, 2^87860256 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 87860256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (137894400).

87860256 is an abundant number, since it is smaller than the sum of its proper divisors (187928544).

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

87860256 is a wasteful number, since it uses less digits than its factorization.

87860256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223 (or 215 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 42.

The square root of 87860256 is about 9373.3801800631. The cubic root of 87860256 is about 444.5604480158.

The spelling of 87860256 in words is "eighty-seven million, eight hundred sixty thousand, two hundred fifty-six".