13899397 has 8 divisors (see below), whose sum is σ = 14299200. Its totient is φ = 13505184.

The previous prime is 13899349. The next prime is 13899401. The reversal of 13899397 is 79399831.

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

It is a cyclic number.

It is not a de Polignac number, because 13899397 - 2⁷ = 13899269 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13899397.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13899307) 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, 3928 + ... + 6574.

It is an arithmetic number, because the mean of its divisors is an integer number (1787400).

Almost surely, 2^13899397 is an apocalyptic number.

It is an amenable number.

13899397 is a deficient number, since it is larger than the sum of its proper divisors (399803).

13899397 is an equidigital number, since it uses as much as digits as its factorization.

13899397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2795.

The product of its digits is 367416, while the sum is 49.

The square root of 13899397 is about 3728.1895069859. The cubic root of 13899397 is about 240.4355343776.

The spelling of 13899397 in words is "thirteen million, eight hundred ninety-nine thousand, three hundred ninety-seven".