123077892 has 96 divisors (see below), whose sum is σ = 352235520. Its totient is φ = 32647680.

The previous prime is 123077887. The next prime is 123077921. The reversal of 123077892 is 298770321.

It is a self number, because there is not a number n which added to its sum of digits gives 123077892.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 112267 + ... + 113357.

It is an arithmetic number, because the mean of its divisors is an integer number (3669120).

Almost surely, 2^123077892 is an apocalyptic number.

123077892 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 123077892, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (176117760).

123077892 is an abundant number, since it is smaller than the sum of its proper divisors (229157628).

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

123077892 is a wasteful number, since it uses less digits than its factorization.

123077892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1201 (or 1199 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 39.

The square root of 123077892 is about 11094.0475931916. The cubic root of 123077892 is about 497.4239399559.

The spelling of 123077892 in words is "one hundred twenty-three million, seventy-seven thousand, eight hundred ninety-two".