12630817 has 2 divisors, whose sum is σ = 12630818. Its totient is φ = 12630816.

The previous prime is 12630809. The next prime is 12630823. The reversal of 12630817 is 71803621.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8785296 + 3845521 = 2964^2 + 1961^2 .

It is an emirp because it is prime and its reverse (71803621) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12630817 - 2³ = 12630809 is a prime.

It is equal to p₈₂₆₇₁₄ and since 12630817 and 826714 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (12630217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6315408 + 6315409.

It is an arithmetic number, because the mean of its divisors is an integer number (6315409).

Almost surely, 2^12630817 is an apocalyptic number.

It is an amenable number.

12630817 is a deficient number, since it is larger than the sum of its proper divisors (1).

12630817 is an equidigital number, since it uses as much as digits as its factorization.

12630817 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2016, while the sum is 28.

The square root of 12630817 is about 3553.9860720042. The cubic root of 12630817 is about 232.8862320434.

The spelling of 12630817 in words is "twelve million, six hundred thirty thousand, eight hundred seventeen".