123604417 has 2 divisors, whose sum is σ = 123604418. Its totient is φ = 123604416.

The previous prime is 123604391. The next prime is 123604421. The reversal of 123604417 is 714406321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 79727041 + 43877376 = 8929^2 + 6624^2 .

It is an emirp because it is prime and its reverse (714406321) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 123604417 - 2⁷ = 123604289 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (123604447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61802208 + 61802209.

It is an arithmetic number, because the mean of its divisors is an integer number (61802209).

Almost surely, 2^123604417 is an apocalyptic number.

It is an amenable number.

123604417 is a deficient number, since it is larger than the sum of its proper divisors (1).

123604417 is an equidigital number, since it uses as much as digits as its factorization.

123604417 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 123604417 is about 11117.7523357916. The cubic root of 123604417 is about 498.1322544069.

The spelling of 123604417 in words is "one hundred twenty-three million, six hundred four thousand, four hundred seventeen".