12477967 has 4 divisors (see below), whose sum is σ = 12492576. Its totient is φ = 12463360.

The previous prime is 12477961. The next prime is 12477973. The reversal of 12477967 is 76977421.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 76977421 = 281 ⋅273941.

It is an interprime number because it is at equal distance from previous prime (12477961) and next prime (12477973).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12477967 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 (12477961) 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, 5938 + ... + 7759.

It is an arithmetic number, because the mean of its divisors is an integer number (3123144).

Almost surely, 2^12477967 is an apocalyptic number.

12477967 is a deficient number, since it is larger than the sum of its proper divisors (14609).

12477967 is an equidigital number, since it uses as much as digits as its factorization.

12477967 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14608.

The product of its digits is 148176, while the sum is 43.

The square root of 12477967 is about 3532.4165949106. The cubic root of 12477967 is about 231.9430039833.

The spelling of 12477967 in words is "twelve million, four hundred seventy-seven thousand, nine hundred sixty-seven".