12277973 has 2 divisors, whose sum is σ = 12277974. Its totient is φ = 12277972.

The previous prime is 12277949. The next prime is 12277981. The reversal of 12277973 is 37977221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8305924 + 3972049 = 2882^2 + 1993^2 .

It is an emirp because it is prime and its reverse (37977221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12277973 - 2¹⁰ = 12276949 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12277913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6138986 + 6138987.

It is an arithmetic number, because the mean of its divisors is an integer number (6138987).

Almost surely, 2^12277973 is an apocalyptic number.

It is an amenable number.

12277973 is a deficient number, since it is larger than the sum of its proper divisors (1).

12277973 is an equidigital number, since it uses as much as digits as its factorization.

12277973 is an evil number, because the sum of its binary digits is even.

The product of its digits is 37044, while the sum is 38.

The square root of 12277973 is about 3503.9938641499. The cubic root of 12277973 is about 230.6971475177.

The spelling of 12277973 in words is "twelve million, two hundred seventy-seven thousand, nine hundred seventy-three".