12700667 has 4 divisors (see below), whose sum is σ = 14515056. Its totient is φ = 10886280.

The previous prime is 12700661. The next prime is 12700687. The reversal of 12700667 is 76600721.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 76600721 = 31 ⋅2470991.

It is a cyclic number.

It is not a de Polignac number, because 12700667 - 2¹⁴ = 12684283 is a prime.

It is a super-2 number, since 2×12700667² = 322613884489778, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12700661) 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, 907184 + ... + 907197.

It is an arithmetic number, because the mean of its divisors is an integer number (3628764).

Almost surely, 2^12700667 is an apocalyptic number.

12700667 is a deficient number, since it is larger than the sum of its proper divisors (1814389).

12700667 is an equidigital number, since it uses as much as digits as its factorization.

12700667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1814388.

The product of its (nonzero) digits is 3528, while the sum is 29.

The square root of 12700667 is about 3563.7995173691. The cubic root of 12700667 is about 233.3147397882.

The spelling of 12700667 in words is "twelve million, seven hundred thousand, six hundred sixty-seven".