13977469 has 4 divisors (see below), whose sum is σ = 15248160. Its totient is φ = 12706780.

The previous prime is 13977463. The next prime is 13977487. The reversal of 13977469 is 96477931.

13977469 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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.

It is a cyclic number.

It is not a de Polignac number, because 13977469 - 2³ = 13977461 is a prime.

It is a super-2 number, since 2×13977469² = 390739279291922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13977461) 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, 635329 + ... + 635350.

It is an arithmetic number, because the mean of its divisors is an integer number (3812040).

Almost surely, 2^13977469 is an apocalyptic number.

It is an amenable number.

13977469 is a deficient number, since it is larger than the sum of its proper divisors (1270691).

13977469 is a wasteful number, since it uses less digits than its factorization.

13977469 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1270690.

The product of its digits is 285768, while the sum is 46.

The square root of 13977469 is about 3738.6453429016. The cubic root of 13977469 is about 240.8848643405.

The spelling of 13977469 in words is "thirteen million, nine hundred seventy-seven thousand, four hundred sixty-nine".