123427397 has 2 divisors, whose sum is σ = 123427398. Its totient is φ = 123427396.

The previous prime is 123427379. The next prime is 123427417. The reversal of 123427397 is 793724321.

Together with previous prime (123427379) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 71385601 + 52041796 = 8449^2 + 7214^2 .

It is a cyclic number.

It is not a de Polignac number, because 123427397 - 2²⁶ = 56318533 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 123427397.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123427307) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61713698 + 61713699.

It is an arithmetic number, because the mean of its divisors is an integer number (61713699).

Almost surely, 2^123427397 is an apocalyptic number.

It is an amenable number.

123427397 is a deficient number, since it is larger than the sum of its proper divisors (1).

123427397 is an equidigital number, since it uses as much as digits as its factorization.

123427397 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 63504, while the sum is 38.

The square root of 123427397 is about 11109.7883418182. The cubic root of 123427397 is about 497.8943408472.

The spelling of 123427397 in words is "one hundred twenty-three million, four hundred twenty-seven thousand, three hundred ninety-seven".