13628693 has 4 divisors (see below), whose sum is σ = 14677068. Its totient is φ = 12580320.

The previous prime is 13628653. The next prime is 13628707. The reversal of 13628693 is 39682631.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 39682631 = 1103 ⋅35977.

It can be written as a sum of positive squares in 2 ways, for example, as 8162449 + 5466244 = 2857^2 + 2338^2 .

It is a cyclic number.

It is not a de Polignac number, because 13628693 - 2¹⁴ = 13612309 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13628603) 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, 524168 + ... + 524193.

It is an arithmetic number, because the mean of its divisors is an integer number (3669267).

Almost surely, 2^13628693 is an apocalyptic number.

13628693 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

13628693 is a deficient number, since it is larger than the sum of its proper divisors (1048375).

13628693 is a wasteful number, since it uses less digits than its factorization.

13628693 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1048374.

The product of its digits is 46656, while the sum is 38.

The square root of 13628693 is about 3691.7059742076. The cubic root of 13628693 is about 238.8643862215.

The spelling of 13628693 in words is "thirteen million, six hundred twenty-eight thousand, six hundred ninety-three".