86198450 has 54 divisors (see below), whose sum is σ = 175346757. Its totient is φ = 31512000.

The previous prime is 86198447. The next prime is 86198471. The reversal of 86198450 is 5489168.

It can be written as a sum of positive squares in 14 ways, for example, as 247009 + 85951441 = 497^2 + 9271^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=6565.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 86198398 and 86198407.

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 26 ways as a sum of consecutive naturals, for example, 853400 + ... + 853500.

Almost surely, 2^86198450 is an apocalyptic number.

86198450 is an abundant number, since it is smaller than the sum of its proper divisors (89148307).

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

86198450 is a wasteful number, since it uses less digits than its factorization.

86198450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240 (or 121 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 41.

The square root of 86198450 is about 9284.3120369794. The cubic root of 86198450 is about 441.7397545278.

The spelling of 86198450 in words is "eighty-six million, one hundred ninety-eight thousand, four hundred fifty".