123617671 has 2 divisors, whose sum is σ = 123617672. Its totient is φ = 123617670.

The previous prime is 123617657. The next prime is 123617687. The reversal of 123617671 is 176716321.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 123617671 - 2¹⁷ = 123486599 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123617651) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61808835 + 61808836.

It is an arithmetic number, because the mean of its divisors is an integer number (61808836).

Almost surely, 2^123617671 is an apocalyptic number.

123617671 is a deficient number, since it is larger than the sum of its proper divisors (1).

123617671 is an equidigital number, since it uses as much as digits as its factorization.

123617671 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10584, while the sum is 34.

The square root of 123617671 is about 11118.3483935340. The cubic root of 123617671 is about 498.1500585412.

The spelling of 123617671 in words is "one hundred twenty-three million, six hundred seventeen thousand, six hundred seventy-one".