12431677 has 4 divisors (see below), whose sum is σ = 12589120. Its totient is φ = 12274236.

The previous prime is 12431663. The next prime is 12431689. The reversal of 12431677 is 77613421.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 77613421 = 157 ⋅494353.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12431677 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 (12431977) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 78603 + ... + 78760.

It is an arithmetic number, because the mean of its divisors is an integer number (3147280).

Almost surely, 2^12431677 is an apocalyptic number.

It is an amenable number.

12431677 is a deficient number, since it is larger than the sum of its proper divisors (157443).

12431677 is an equidigital number, since it uses as much as digits as its factorization.

12431677 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157442.

The product of its digits is 7056, while the sum is 31.

The square root of 12431677 is about 3525.8583352143. The cubic root of 12431677 is about 231.6558325823.

The spelling of 12431677 in words is "twelve million, four hundred thirty-one thousand, six hundred seventy-seven".