12399351 has 16 divisors (see below), whose sum is σ = 17026944. Its totient is φ = 8021664.

The previous prime is 12399347. The next prime is 12399371. The reversal of 12399351 is 15399321.

It is not a de Polignac number, because 12399351 - 2² = 12399347 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12399301) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35560 + ... + 35906.

It is an arithmetic number, because the mean of its divisors is an integer number (1064184).

Almost surely, 2^12399351 is an apocalyptic number.

12399351 is a deficient number, since it is larger than the sum of its proper divisors (4627593).

12399351 is a wasteful number, since it uses less digits than its factorization.

12399351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 670.

The product of its digits is 7290, while the sum is 33.

The square root of 12399351 is about 3521.2712193184. The cubic root of 12399351 is about 231.4548672953.

The spelling of 12399351 in words is "twelve million, three hundred ninety-nine thousand, three hundred fifty-one".