123938797 has 2 divisors, whose sum is σ = 123938798. Its totient is φ = 123938796.

The previous prime is 123938761. The next prime is 123938803. The reversal of 123938797 is 797839321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 115476516 + 8462281 = 10746^2 + 2909^2 .

It is a cyclic number.

It is not a de Polignac number, because 123938797 - 2⁷ = 123938669 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 123938797.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123938897) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61969398 + 61969399.

It is an arithmetic number, because the mean of its divisors is an integer number (61969399).

Almost surely, 2^123938797 is an apocalyptic number.

It is an amenable number.

123938797 is a deficient number, since it is larger than the sum of its proper divisors (1).

123938797 is an equidigital number, since it uses as much as digits as its factorization.

123938797 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 571536, while the sum is 49.

The square root of 123938797 is about 11132.7802906552. The cubic root of 123938797 is about 498.5810395787.

The spelling of 123938797 in words is "one hundred twenty-three million, nine hundred thirty-eight thousand, seven hundred ninety-seven".