86871850 has 24 divisors (see below), whose sum is σ = 174012300. Its totient is φ = 32075520.

The previous prime is 86871847. The next prime is 86871871. The reversal of 86871850 is 5817868.

It can be written as a sum of positive squares in 6 ways, for example, as 326041 + 86545809 = 571^2 + 9303^2 .

It is a junction number, because it is equal to n+sod(n) for n = 86871797 and 86871806.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 66175 + ... + 67474.

Almost surely, 2^86871850 is an apocalyptic number.

86871850 is an abundant number, since it is smaller than the sum of its proper divisors (87140450).

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

86871850 is a wasteful number, since it uses less digits than its factorization.

86871850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133674 (or 133669 counting only the distinct ones).

The product of its (nonzero) digits is 107520, while the sum is 43.

The square root of 86871850 is about 9320.5069604609. The cubic root of 86871850 is about 442.8870925189.

The spelling of 86871850 in words is "eighty-six million, eight hundred seventy-one thousand, eight hundred fifty".