108466639 has 4 divisors (see below), whose sum is σ = 108509920. Its totient is φ = 108423360.

The previous prime is 108466619. The next prime is 108466679. The reversal of 108466639 is 936664801.

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 108466639 - 2¹³ = 108458447 is a prime.

It is a super-3 number, since 3×108466639³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 108466595 and 108466604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (108466619) 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, 17634 + ... + 22975.

It is an arithmetic number, because the mean of its divisors is an integer number (27127480).

Almost surely, 2^108466639 is an apocalyptic number.

108466639 is a deficient number, since it is larger than the sum of its proper divisors (43281).

108466639 is an equidigital number, since it uses as much as digits as its factorization.

108466639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43280.

The product of its (nonzero) digits is 186624, while the sum is 43.

The square root of 108466639 is about 10414.7318256401. The cubic root of 108466639 is about 476.9052034998.

The spelling of 108466639 in words is "one hundred eight million, four hundred sixty-six thousand, six hundred thirty-nine".