8660407 has 10 divisors (see below), whose sum is σ = 10106008. Its totient is φ = 7421148.

The previous prime is 8660401. The next prime is 8660413. The reversal of 8660407 is 7040668.

It is an interprime number because it is at equal distance from previous prime (8660401) and next prime (8660413).

It is not a de Polignac number, because 8660407 - 2¹⁵ = 8627639 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8660401) by changing a digit.

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 9 ways as a sum of consecutive naturals, for example, 598 + ... + 4204.

Almost surely, 2^8660407 is an apocalyptic number.

8660407 is a deficient number, since it is larger than the sum of its proper divisors (1445601).

8660407 is an frugal number, since it uses more digits than its factorization.

8660407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3635 (or 3614 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 8660407 is about 2942.8569452150. The cubic root of 8660407 is about 205.3585397201.

The spelling of 8660407 in words is "eight million, six hundred sixty thousand, four hundred seven".