13893449 has 4 divisors (see below), whose sum is σ = 14497536. Its totient is φ = 13289364.

The previous prime is 13893431. The next prime is 13893479. The reversal of 13893449 is 94439831.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 94439831 = 223 ⋅423497.

It is a cyclic number.

It is not a de Polignac number, because 13893449 - 2⁸ = 13893193 is a prime.

It is a Duffinian number.

It is a plaindrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (13893479) 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, 302009 + ... + 302054.

It is an arithmetic number, because the mean of its divisors is an integer number (3624384).

Almost surely, 2^13893449 is an apocalyptic number.

It is an amenable number.

13893449 is a deficient number, since it is larger than the sum of its proper divisors (604087).

13893449 is an equidigital number, since it uses as much as digits as its factorization.

13893449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 604086.

The product of its digits is 93312, while the sum is 41.

The square root of 13893449 is about 3727.3917153956. The cubic root of 13893449 is about 240.4012327791.

The spelling of 13893449 in words is "thirteen million, eight hundred ninety-three thousand, four hundred forty-nine".