123889473 has 8 divisors (see below), whose sum is σ = 183540000. Its totient is φ = 82592964.

The previous prime is 123889463. The next prime is 123889487. The reversal of 123889473 is 374988321.

It is not a de Polignac number, because 123889473 - 2⁴ = 123889457 is a prime.

It is not an unprimeable number, because it can be changed into a prime (123889453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2294223 + ... + 2294276.

It is an arithmetic number, because the mean of its divisors is an integer number (22942500).

Almost surely, 2^123889473 is an apocalyptic number.

It is an amenable number.

123889473 is a deficient number, since it is larger than the sum of its proper divisors (59650527).

123889473 is an equidigital number, since it uses as much as digits as its factorization.

123889473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4588508 (or 4588502 counting only the distinct ones).

The product of its digits is 290304, while the sum is 45.

The square root of 123889473 is about 11130.5648104667. The cubic root of 123889473 is about 498.5148906008.

The spelling of 123889473 in words is "one hundred twenty-three million, eight hundred eighty-nine thousand, four hundred seventy-three".