12499407 has 16 divisors (see below), whose sum is σ = 18576480. Its totient is φ = 8306496.

The previous prime is 12499381. The next prime is 12499439. The reversal of 12499407 is 70499421.

12499407 is a `hidden beast` number, since 1 + 249 + 9 + 407 = 666.

It is not a de Polignac number, because 12499407 - 2⁶ = 12499343 is a prime.

It is a super-3 number, since 3×12499407³ (a number of 22 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12499447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11833 + ... + 12845.

It is an arithmetic number, because the mean of its divisors is an integer number (1161030).

Almost surely, 2^12499407 is an apocalyptic number.

12499407 is a deficient number, since it is larger than the sum of its proper divisors (6077073).

12499407 is a wasteful number, since it uses less digits than its factorization.

12499407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1479 (or 1473 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 12499407 is about 3535.4500420739. The cubic root of 12499407 is about 232.0757716730.

The spelling of 12499407 in words is "twelve million, four hundred ninety-nine thousand, four hundred seven".