123859646 has 32 divisors (see below), whose sum is σ = 202540608. Its totient is φ = 56643840.

The previous prime is 123859627. The next prime is 123859649. The reversal of 123859646 is 646958321.

It is a junction number, because it is equal to n+sod(n) for n = 123859597 and 123859606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123859649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 103226 + ... + 104418.

It is an arithmetic number, because the mean of its divisors is an integer number (6329394).

Almost surely, 2^123859646 is an apocalyptic number.

123859646 is a deficient number, since it is larger than the sum of its proper divisors (78680962).

123859646 is a wasteful number, since it uses less digits than its factorization.

123859646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1316.

The product of its digits is 311040, while the sum is 44.

The square root of 123859646 is about 11129.2248606990. The cubic root of 123859646 is about 498.4748807524.

The spelling of 123859646 in words is "one hundred twenty-three million, eight hundred fifty-nine thousand, six hundred forty-six".