12492787 has 2 divisors, whose sum is σ = 12492788. Its totient is φ = 12492786.

The previous prime is 12492743. The next prime is 12492793. The reversal of 12492787 is 78729421.

It is a strong prime.

It is an emirp because it is prime and its reverse (78729421) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12492787 is a prime.

It is not a weakly prime, because it can be changed into another prime (12492187) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6246393 + 6246394.

It is an arithmetic number, because the mean of its divisors is an integer number (6246394).

Almost surely, 2^12492787 is an apocalyptic number.

12492787 is a deficient number, since it is larger than the sum of its proper divisors (1).

12492787 is an equidigital number, since it uses as much as digits as its factorization.

12492787 is an evil number, because the sum of its binary digits is even.

The product of its digits is 56448, while the sum is 40.

The square root of 12492787 is about 3534.5136864921. The cubic root of 12492787 is about 232.0347933846.

The spelling of 12492787 in words is "twelve million, four hundred ninety-two thousand, seven hundred eighty-seven".