12693437 has 4 divisors (see below), whose sum is σ = 12908640. Its totient is φ = 12478236.

The previous prime is 12693413. The next prime is 12693449. The reversal of 12693437 is 73439621.

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: 73439621 = 23 ⋅3193027.

It is a cyclic number.

It is not a de Polignac number, because 12693437 - 2⁸ = 12693181 is a prime.

It is a super-2 number, since 2×12693437² = 322246685745938, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12693397 and 12693406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12693467) 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, 107513 + ... + 107630.

It is an arithmetic number, because the mean of its divisors is an integer number (3227160).

Almost surely, 2^12693437 is an apocalyptic number.

It is an amenable number.

12693437 is a deficient number, since it is larger than the sum of its proper divisors (215203).

12693437 is an equidigital number, since it uses as much as digits as its factorization.

12693437 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215202.

The product of its digits is 27216, while the sum is 35.

The square root of 12693437 is about 3562.7850061434. The cubic root of 12693437 is about 233.2704590230.

The spelling of 12693437 in words is "twelve million, six hundred ninety-three thousand, four hundred thirty-seven".