123406667 has 2 divisors, whose sum is σ = 123406668. Its totient is φ = 123406666.

The previous prime is 123406649. The next prime is 123406693. The reversal of 123406667 is 766604321.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 123406667 - 2¹⁸ = 123144523 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (123406607) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61703333 + 61703334.

It is an arithmetic number, because the mean of its divisors is an integer number (61703334).

Almost surely, 2^123406667 is an apocalyptic number.

123406667 is a deficient number, since it is larger than the sum of its proper divisors (1).

123406667 is an equidigital number, since it uses as much as digits as its factorization.

123406667 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36288, while the sum is 35.

The square root of 123406667 is about 11108.8553415732. The cubic root of 123406667 is about 497.8664650059.

The spelling of 123406667 in words is "one hundred twenty-three million, four hundred six thousand, six hundred sixty-seven".