12392947 has 16 divisors (see below), whose sum is σ = 15019200. Its totient is φ = 9999360.

The previous prime is 12392927. The next prime is 12392951. The reversal of 12392947 is 74929321.

It is not a de Polignac number, because 12392947 - 2²³ = 4004339 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12392927) 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, 7579 + ... + 9067.

It is an arithmetic number, because the mean of its divisors is an integer number (938700).

Almost surely, 2^12392947 is an apocalyptic number.

12392947 is a deficient number, since it is larger than the sum of its proper divisors (2626253).

12392947 is a wasteful number, since it uses less digits than its factorization.

12392947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1566.

The product of its digits is 27216, while the sum is 37.

The square root of 12392947 is about 3520.3617711820. The cubic root of 12392947 is about 231.4150132679.

It can be divided in two parts, 1239 and 2947, that added together give a triangular number (4186 = T₉₁).

The spelling of 12392947 in words is "twelve million, three hundred ninety-two thousand, nine hundred forty-seven".