107866639 has 4 divisors (see below), whose sum is σ = 111346240. Its totient is φ = 104387040.

The previous prime is 107866637. The next prime is 107866663. The reversal of 107866639 is 936668701.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 107866639 - 2¹ = 107866637 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 (107866637) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1739754 + ... + 1739815.

It is an arithmetic number, because the mean of its divisors is an integer number (27836560).

Almost surely, 2^107866639 is an apocalyptic number.

107866639 is a deficient number, since it is larger than the sum of its proper divisors (3479601).

107866639 is an equidigital number, since it uses as much as digits as its factorization.

107866639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3479600.

The product of its (nonzero) digits is 326592, while the sum is 46.

The square root of 107866639 is about 10385.8865293243. The cubic root of 107866639 is about 476.0242187498.

The spelling of 107866639 in words is "one hundred seven million, eight hundred sixty-six thousand, six hundred thirty-nine".