86668040 has 32 divisors (see below), whose sum is σ = 206475480. Its totient is φ = 32627712.

The previous prime is 86668031. The next prime is 86668061. The reversal of 86668040 is 4086668.

It can be written as a sum of positive squares in 4 ways, for example, as 86229796 + 438244 = 9286^2 + 662^2 .

It is a super-2 number, since 2×86668040² = 15022698314883200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 86667985 and 86668003.

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 7 ways as a sum of consecutive naturals, for example, 63047 + ... + 64406.

Almost surely, 2^86668040 is an apocalyptic number.

It is an amenable number.

86668040 is an abundant number, since it is smaller than the sum of its proper divisors (119807440).

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

86668040 is a wasteful number, since it uses less digits than its factorization.

86668040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127481 (or 127477 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 38.

The square root of 86668040 is about 9309.5671220525. The cubic root of 86668040 is about 442.5404689173.

The spelling of 86668040 in words is "eighty-six million, six hundred sixty-eight thousand, forty".