12499669 has 8 divisors (see below), whose sum is σ = 15384320. Its totient is φ = 9889776.

The previous prime is 12499661. The next prime is 12499687. The reversal of 12499669 is 96699421.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12499669 - 2³ = 12499661 is a prime.

It is a super-2 number, since 2×12499669² = 312483450219122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12499661) 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, 68589 + ... + 68770.

It is an arithmetic number, because the mean of its divisors is an integer number (1923040).

Almost surely, 2^12499669 is an apocalyptic number.

It is an amenable number.

12499669 is a deficient number, since it is larger than the sum of its proper divisors (2884651).

12499669 is a wasteful number, since it uses less digits than its factorization.

12499669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137379.

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

The square root of 12499669 is about 3535.4870951539. The cubic root of 12499669 is about 232.0773931747.

The spelling of 12499669 in words is "twelve million, four hundred ninety-nine thousand, six hundred sixty-nine".