12696949 has 4 divisors (see below), whose sum is σ = 13106560. Its totient is φ = 12287340.

The previous prime is 12696947. The next prime is 12696973. The reversal of 12696949 is 94969621.

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: 94969621 = 8447 ⋅11243.

It is a cyclic number.

It is not a de Polignac number, because 12696949 - 2¹ = 12696947 is a prime.

It is a super-2 number, since 2×12696949² = 322425027817202, 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 = 12696899 and 12696908.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12696947) 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, 204759 + ... + 204820.

It is an arithmetic number, because the mean of its divisors is an integer number (3276640).

Almost surely, 2^12696949 is an apocalyptic number.

It is an amenable number.

12696949 is a deficient number, since it is larger than the sum of its proper divisors (409611).

12696949 is an equidigital number, since it uses as much as digits as its factorization.

12696949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 409610.

The product of its digits is 209952, while the sum is 46.

The square root of 12696949 is about 3563.2778449063. The cubic root of 12696949 is about 233.2919706727.

The spelling of 12696949 in words is "twelve million, six hundred ninety-six thousand, nine hundred forty-nine".