13872747 has 8 divisors (see below), whose sum is σ = 21139456. Its totient is φ = 7927272.

The previous prime is 13872739. The next prime is 13872763. The reversal of 13872747 is 74727831.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 13872747 - 2³ = 13872739 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13872707) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 330283 + ... + 330324.

It is an arithmetic number, because the mean of its divisors is an integer number (2642432).

Almost surely, 2^13872747 is an apocalyptic number.

13872747 is a deficient number, since it is larger than the sum of its proper divisors (7266709).

13872747 is an equidigital number, since it uses as much as digits as its factorization.

13872747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 660617.

The product of its digits is 65856, while the sum is 39.

The square root of 13872747 is about 3724.6136712416. The cubic root of 13872747 is about 240.2817697558.

The spelling of 13872747 in words is "thirteen million, eight hundred seventy-two thousand, seven hundred forty-seven".