12776453 has 2 divisors, whose sum is σ = 12776454. Its totient is φ = 12776452.

The previous prime is 12776441. The next prime is 12776459. The reversal of 12776453 is 35467721.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10349089 + 2427364 = 3217^2 + 1558^2 .

It is a cyclic number.

It is not a de Polignac number, because 12776453 - 2⁴ = 12776437 is a prime.

It is a super-2 number, since 2×12776453² = 326475502522418, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12776459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6388226 + 6388227.

It is an arithmetic number, because the mean of its divisors is an integer number (6388227).

Almost surely, 2^12776453 is an apocalyptic number.

It is an amenable number.

12776453 is a deficient number, since it is larger than the sum of its proper divisors (1).

12776453 is an equidigital number, since it uses as much as digits as its factorization.

12776453 is an evil number, because the sum of its binary digits is even.

The product of its digits is 35280, while the sum is 35.

The square root of 12776453 is about 3574.4164558708. The cubic root of 12776453 is about 233.7778896632. Note that the first 3 decimals are identical.

The spelling of 12776453 in words is "twelve million, seven hundred seventy-six thousand, four hundred fifty-three".