12238477 has 2 divisors, whose sum is σ = 12238478. Its totient is φ = 12238476.

The previous prime is 12238439. The next prime is 12238481. The reversal of 12238477 is 77483221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11417641 + 820836 = 3379^2 + 906^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12238477 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12238417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6119238 + 6119239.

It is an arithmetic number, because the mean of its divisors is an integer number (6119239).

Almost surely, 2^12238477 is an apocalyptic number.

It is an amenable number.

12238477 is a deficient number, since it is larger than the sum of its proper divisors (1).

12238477 is an equidigital number, since it uses as much as digits as its factorization.

12238477 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18816, while the sum is 34.

The square root of 12238477 is about 3498.3534698484. The cubic root of 12238477 is about 230.4495115773.

The spelling of 12238477 in words is "twelve million, two hundred thirty-eight thousand, four hundred seventy-seven".