123677712 has 80 divisors (see below), whose sum is σ = 360383680. Its totient is φ = 40601088.

The previous prime is 123677711. The next prime is 123677731. The reversal of 123677712 is 217776321.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (123677711) 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 15 ways as a sum of consecutive naturals, for example, 26808 + ... + 31080.

It is an arithmetic number, because the mean of its divisors is an integer number (4504796).

Almost surely, 2^123677712 is an apocalyptic number.

123677712 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 123677712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (180191840).

123677712 is an abundant number, since it is smaller than the sum of its proper divisors (236705968).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

123677712 is a wasteful number, since it uses less digits than its factorization.

123677712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4357 (or 4345 counting only the distinct ones).

The product of its digits is 24696, while the sum is 36.

The square root of 123677712 is about 11121.0481520403. The cubic root of 123677712 is about 498.2306958439.

The spelling of 123677712 in words is "one hundred twenty-three million, six hundred seventy-seven thousand, seven hundred twelve".