12611667 has 4 divisors (see below), whose sum is σ = 16815560. Its totient is φ = 8407776.

The previous prime is 12611633. The next prime is 12611693. The reversal of 12611667 is 76611621.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 76611621 = 3 ⋅25537207.

It is not a de Polignac number, because 12611667 - 2⁸ = 12611411 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12611617) 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, 2101942 + ... + 2101947.

It is an arithmetic number, because the mean of its divisors is an integer number (4203890).

Almost surely, 2^12611667 is an apocalyptic number.

12611667 is a deficient number, since it is larger than the sum of its proper divisors (4203893).

12611667 is an equidigital number, since it uses as much as digits as its factorization.

12611667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4203892.

The product of its digits is 3024, while the sum is 30.

The square root of 12611667 is about 3551.2908920560. The cubic root of 12611667 is about 232.7684770026.

The spelling of 12611667 in words is "twelve million, six hundred eleven thousand, six hundred sixty-seven".