12698949 has 24 divisors (see below), whose sum is σ = 18292288. Its totient is φ = 7833600.

The previous prime is 12698911. The next prime is 12698951. The reversal of 12698949 is 94989621.

12698949 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12698949 - 2¹³ = 12690757 is a prime.

It is a super-2 number, since 2×12698949² = 322526611409202, 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 = 12698898 and 12698907.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12698909) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 84024 + ... + 84174.

Almost surely, 2^12698949 is an apocalyptic number.

It is an amenable number.

12698949 is a deficient number, since it is larger than the sum of its proper divisors (5593339).

12698949 is a wasteful number, since it uses less digits than its factorization.

12698949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 285 (or 268 counting only the distinct ones).

The product of its digits is 279936, while the sum is 48.

The square root of 12698949 is about 3563.5584743343. The cubic root of 12698949 is about 233.3042192700.

The spelling of 12698949 in words is "twelve million, six hundred ninety-eight thousand, nine hundred forty-nine".