123489398 has 16 divisors (see below), whose sum is σ = 199134720. Its totient is φ = 57249576.

The previous prime is 123489397. The next prime is 123489427. The reversal of 123489398 is 893984321.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (47).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123489397) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32786 + ... + 36357.

It is an arithmetic number, because the mean of its divisors is an integer number (12445920).

Almost surely, 2^123489398 is an apocalyptic number.

123489398 is a deficient number, since it is larger than the sum of its proper divisors (75645322).

123489398 is a wasteful number, since it uses less digits than its factorization.

123489398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69211.

The product of its digits is 373248, while the sum is 47.

The square root of 123489398 is about 11112.5783686775. The cubic root of 123489398 is about 497.9776955973.

The spelling of 123489398 in words is "one hundred twenty-three million, four hundred eighty-nine thousand, three hundred ninety-eight".