12490997 has 2 divisors, whose sum is σ = 12490998. Its totient is φ = 12490996.

The previous prime is 12490993. The next prime is 12491009. The reversal of 12490997 is 79909421.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7150276 + 5340721 = 2674^2 + 2311^2 .

It is a cyclic number.

It is not a de Polignac number, because 12490997 - 2² = 12490993 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12490993) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6245498 + 6245499.

It is an arithmetic number, because the mean of its divisors is an integer number (6245499).

Almost surely, 2^12490997 is an apocalyptic number.

It is an amenable number.

12490997 is a deficient number, since it is larger than the sum of its proper divisors (1).

12490997 is an equidigital number, since it uses as much as digits as its factorization.

12490997 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 40824, while the sum is 41.

The square root of 12490997 is about 3534.2604601246. The cubic root of 12490997 is about 232.0237106662.

The spelling of 12490997 in words is "twelve million, four hundred ninety thousand, nine hundred ninety-seven".