123863897 has 2 divisors, whose sum is σ = 123863898. Its totient is φ = 123863896.

The previous prime is 123863893. The next prime is 123863899. The reversal of 123863897 is 798368321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 119006281 + 4857616 = 10909^2 + 2204^2 .

It is a cyclic number.

It is not a de Polignac number, because 123863897 - 2² = 123863893 is a prime.

Together with 123863899, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (123863893) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61931948 + 61931949.

It is an arithmetic number, because the mean of its divisors is an integer number (61931949).

Almost surely, 2^123863897 is an apocalyptic number.

It is an amenable number.

123863897 is a deficient number, since it is larger than the sum of its proper divisors (1).

123863897 is an equidigital number, since it uses as much as digits as its factorization.

123863897 is an evil number, because the sum of its binary digits is even.

The product of its digits is 435456, while the sum is 47.

The square root of 123863897 is about 11129.4158427116. The cubic root of 123863897 is about 498.4805834236.

The spelling of 123863897 in words is "one hundred twenty-three million, eight hundred sixty-three thousand, eight hundred ninety-seven".