86678650 has 24 divisors (see below), whose sum is σ = 161517564. Its totient is φ = 34608000.

The previous prime is 86678623. The next prime is 86678659. The reversal of 86678650 is 5687668.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 59336209 + 27342441 = 7703^2 + 5229^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 86678650.

It is not an unprimeable number, because it can be changed into a prime (86678659) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 33814 + ... + 36286.

Almost surely, 2^86678650 is an apocalyptic number.

86678650 is a deficient number, since it is larger than the sum of its proper divisors (74838914).

86678650 is a wasteful number, since it uses less digits than its factorization.

86678650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3186 (or 3181 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 46.

The square root of 86678650 is about 9310.1369485094. The cubic root of 86678650 is about 442.5585269496.

The spelling of 86678650 in words is "eighty-six million, six hundred seventy-eight thousand, six hundred fifty".