86550084 has 18 divisors (see below), whose sum is σ = 218779470. Its totient is φ = 28850016.

The previous prime is 86550059. The next prime is 86550103. The reversal of 86550084 is 48005568.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 51408900 + 35141184 = 7170^2 + 5928^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 2404169 = 86550084 / (8 + 6 + 5 + 5 + 0 + 0 + 8 + 4).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1202049 + ... + 1202120.

It is an arithmetic number, because the mean of its divisors is an integer number (12154415).

Almost surely, 2^86550084 is an apocalyptic number.

It is an amenable number.

86550084 is an abundant number, since it is smaller than the sum of its proper divisors (132229386).

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

86550084 is a wasteful number, since it uses less digits than its factorization.

86550084 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2404179 (or 2404174 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 36.

The square root of 86550084 is about 9303.2297617548. The cubic root of 86550084 is about 442.3396105495.

The spelling of 86550084 in words is "eighty-six million, five hundred fifty thousand, eighty-four".