123886634 has 16 divisors (see below), whose sum is σ = 187869888. Its totient is φ = 61266912.

The previous prime is 123886627. The next prime is 123886661. The reversal of 123886634 is 436688321.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 123886591 and 123886600.

It is an unprimeable number.

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, 94427 + ... + 95729.

It is an arithmetic number, because the mean of its divisors is an integer number (11741868).

Almost surely, 2^123886634 is an apocalyptic number.

123886634 is a deficient number, since it is larger than the sum of its proper divisors (63983254).

123886634 is a wasteful number, since it uses less digits than its factorization.

123886634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1789.

The product of its digits is 165888, while the sum is 41.

The square root of 123886634 is about 11130.4372780228. The cubic root of 123886634 is about 498.5110826512.

The spelling of 123886634 in words is "one hundred twenty-three million, eight hundred eighty-six thousand, six hundred thirty-four".