12478957 has 8 divisors (see below), whose sum is σ = 13029120. Its totient is φ = 11938080.

The previous prime is 12478943. The next prime is 12478979. The reversal of 12478957 is 75987421.

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

It is a cyclic number.

It is not a de Polignac number, because 12478957 - 2¹¹ = 12476909 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12478057) 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, 498 + ... + 5020.

It is an arithmetic number, because the mean of its divisors is an integer number (1628640).

Almost surely, 2^12478957 is an apocalyptic number.

It is an amenable number.

12478957 is a deficient number, since it is larger than the sum of its proper divisors (550163).

12478957 is an equidigital number, since it uses as much as digits as its factorization.

12478957 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4643.

The product of its digits is 141120, while the sum is 43.

The square root of 12478957 is about 3532.5567228284. The cubic root of 12478957 is about 231.9491379286.

The spelling of 12478957 in words is "twelve million, four hundred seventy-eight thousand, nine hundred fifty-seven".