13384769 has 8 divisors (see below), whose sum is σ = 13656552. Its totient is φ = 13115520.

The previous prime is 13384757. The next prime is 13384783. The reversal of 13384769 is 96748331.

13384769 = 130² + 131² + ... + 348².

It can be written as a sum of positive squares in 4 ways, for example, as 1050625 + 12334144 = 1025^2 + 3512^2 .

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 13384769 - 2⁴ = 13384753 is a prime.

It is a super-2 number, since 2×13384769² = 358304082366722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13384069) 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, 12707 + ... + 13719.

It is an arithmetic number, because the mean of its divisors is an integer number (1707069).

Almost surely, 2^13384769 is an apocalyptic number.

It is an amenable number.

13384769 is a deficient number, since it is larger than the sum of its proper divisors (271783).

13384769 is a wasteful number, since it uses less digits than its factorization.

13384769 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1267.

The product of its digits is 108864, while the sum is 41.

The square root of 13384769 is about 3658.5200559789. The cubic root of 13384769 is about 237.4307476758.

The spelling of 13384769 in words is "thirteen million, three hundred eighty-four thousand, seven hundred sixty-nine".