123489673 has 2 divisors, whose sum is σ = 123489674. Its totient is φ = 123489672.

The previous prime is 123489671. The next prime is 123489701. The reversal of 123489673 is 376984321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 76265289 + 47224384 = 8733^2 + 6872^2 .

It is a cyclic number.

It is not a de Polignac number, because 123489673 - 2¹ = 123489671 is a prime.

Together with 123489671, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (123489671) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61744836 + 61744837.

It is an arithmetic number, because the mean of its divisors is an integer number (61744837).

Almost surely, 2^123489673 is an apocalyptic number.

It is an amenable number.

123489673 is a deficient number, since it is larger than the sum of its proper divisors (1).

123489673 is an equidigital number, since it uses as much as digits as its factorization.

123489673 is an evil number, because the sum of its binary digits is even.

The product of its digits is 217728, while the sum is 43.

The square root of 123489673 is about 11112.5907420367. The cubic root of 123489673 is about 497.9780652479.

The spelling of 123489673 in words is "one hundred twenty-three million, four hundred eighty-nine thousand, six hundred seventy-three".