12920767 has 2 divisors, whose sum is σ = 12920768. Its totient is φ = 12920766.

The previous prime is 12920737. The next prime is 12920773. The reversal of 12920767 is 76702921.

It is a strong prime.

It is an emirp because it is prime and its reverse (76702921) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12920767 - 2¹⁹ = 12396479 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12920717) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6460383 + 6460384.

It is an arithmetic number, because the mean of its divisors is an integer number (6460384).

Almost surely, 2^12920767 is an apocalyptic number.

12920767 is a deficient number, since it is larger than the sum of its proper divisors (1).

12920767 is an equidigital number, since it uses as much as digits as its factorization.

12920767 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10584, while the sum is 34.

The square root of 12920767 is about 3594.5468420929. The cubic root of 12920767 is about 234.6547941957.

The spelling of 12920767 in words is "twelve million, nine hundred twenty thousand, seven hundred sixty-seven".