13872089 has 16 divisors (see below), whose sum is σ = 17387136. Its totient is φ = 10752000.

The previous prime is 13872073. The next prime is 13872107. The reversal of 13872089 is 98027831.

It is not a de Polignac number, because 13872089 - 2⁴ = 13872073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13872029) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19439 + ... + 20139.

It is an arithmetic number, because the mean of its divisors is an integer number (1086696).

Almost surely, 2^13872089 is an apocalyptic number.

It is an amenable number.

13872089 is a deficient number, since it is larger than the sum of its proper divisors (3515047).

13872089 is a wasteful number, since it uses less digits than its factorization.

13872089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 976.

The product of its (nonzero) digits is 24192, while the sum is 38.

The square root of 13872089 is about 3724.5253388855. The cubic root of 13872089 is about 240.2779707509.

It can be divided in two parts, 138 and 72089, that added together give a palindrome (72227).

The spelling of 13872089 in words is "thirteen million, eight hundred seventy-two thousand, eighty-nine".