13872066 has 32 divisors (see below), whose sum is σ = 30847488. Its totient is φ = 4129920.

The previous prime is 13872037. The next prime is 13872073. The reversal of 13872066 is 66027831.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 451 + ... + 5286.

It is an arithmetic number, because the mean of its divisors is an integer number (963984).

Almost surely, 2^13872066 is an apocalyptic number.

13872066 is an abundant number, since it is smaller than the sum of its proper divisors (16975422).

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

13872066 is a wasteful number, since it uses less digits than its factorization.

13872066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5786.

The product of its (nonzero) digits is 12096, while the sum is 33.

The square root of 13872066 is about 3724.5222512424. The cubic root of 13872066 is about 240.2778379567.

Adding to 13872066 its reverse (66027831), we get a palindrome (79899897).

The spelling of 13872066 in words is "thirteen million, eight hundred seventy-two thousand, sixty-six".