86678730 has 24 divisors (see below), whose sum is σ = 225364932. Its totient is φ = 23114304.

The previous prime is 86678707. The next prime is 86678731. The reversal of 86678730 is 3787668.

It can be written as a sum of positive squares in 2 ways, for example, as 84437721 + 2241009 = 9189^2 + 1497^2 .

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (86678731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 481459 + ... + 481638.

Almost surely, 2^86678730 is an apocalyptic number.

86678730 is an abundant number, since it is smaller than the sum of its proper divisors (138686202).

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

86678730 is a wasteful number, since it uses less digits than its factorization.

86678730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 963110 (or 963107 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 45.

The square root of 86678730 is about 9310.1412449006. The cubic root of 86678730 is about 442.5586631026.

The spelling of 86678730 in words is "eighty-six million, six hundred seventy-eight thousand, seven hundred thirty".